MIPS: Fix _rebased_android_toolchain_root name spelling error

MIPS: Fix _rebased_android_toolchain_root name spelling error

Fixing spelling error introduced with:
https://codereview.chromium.org/1996433002

BUG=gn gen error:
ERROR at //build/config/compiler/BUILD.gn:349:36: Undefined identifier in string expansion.
    ldflags += [ "--gcc-toolchain=$rebased_android_toolchain_root" ]
                                   ^-----------------------------
"rebased_android_toolchain_root" is not currently in scope.
See //build/config/BUILDCONFIG.gn:451:3: which caused the file to be included.
  "//build/config/compiler:compiler",
  ^---------------------------------

TEST=gn gen out-gn/mips-android --args="is_debug=false target_os=\"android\" target_cpu=\"mipsel\"  is_clang=true"

Committed: https://crrev.com/3655785fa021e9bc0ace8412a4014c80c2ebac5f
Cr-Commit-Position: refs/heads/master@{#396807}

[gordanac, 2016-05-30 13:32:41]

gordana.cmiljanovic@imgtec.com changed reviewers:
+ agrieve@chromium.org, brettw@chromium.org

[gordanac, 2016-05-30 13:32:41]

Please take a look.

[agrieve, 2016-05-30 13:50:09]

On 2016/05/30 13:32:41, gordanac wrote:
> Please take a look.

lgtm

[gordanac, 2016-05-30 15:09:38]

The CQ bit was checked by gordana.cmiljanovic@imgtec.com

[commit-bot: I haz the power, 2016-05-30 15:09:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2027433002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2027433002/1

[commit-bot: I haz the power, 2016-05-30 17:22:51]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-05-30 17:22:52]

Try jobs failed on following builders:
  linux_android_rel_ng on tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/linux_androi...)

[gordanac, 2016-05-31 08:15:20]

The CQ bit was checked by gordana.cmiljanovic@imgtec.com

[commit-bot: I haz the power, 2016-05-31 08:15:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2027433002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2027433002/1

[commit-bot: I haz the power, 2016-05-31 09:15:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-31 09:16:52]

Description was changed from

==========
MIPS: Fix _rebased_android_toolchain_root name spelling error

Fixing spelling error introduced with:
https://codereview.chromium.org/1996433002

BUG=gn gen error:
ERROR at //build/config/compiler/BUILD.gn:349:36: Undefined identifier in string
expansion.
    ldflags += [ "--gcc-toolchain=$rebased_android_toolchain_root" ]
                                   ^-----------------------------
"rebased_android_toolchain_root" is not currently in scope.
See //build/config/BUILDCONFIG.gn:451:3: which caused the file to be included.
  "//build/config/compiler:compiler",
  ^---------------------------------

TEST=gn gen out-gn/mips-android --args="is_debug=false target_os=\"android\"
target_cpu=\"mipsel\"  is_clang=true"
==========

to

==========
MIPS: Fix _rebased_android_toolchain_root name spelling error

Fixing spelling error introduced with:
https://codereview.chromium.org/1996433002

BUG=gn gen error:
ERROR at //build/config/compiler/BUILD.gn:349:36: Undefined identifier in string
expansion.
    ldflags += [ "--gcc-toolchain=$rebased_android_toolchain_root" ]
                                   ^-----------------------------
"rebased_android_toolchain_root" is not currently in scope.
See //build/config/BUILDCONFIG.gn:451:3: which caused the file to be included.
  "//build/config/compiler:compiler",
  ^---------------------------------

TEST=gn gen out-gn/mips-android --args="is_debug=false target_os=\"android\"
target_cpu=\"mipsel\"  is_clang=true"

Committed: https://crrev.com/3655785fa021e9bc0ace8412a4014c80c2ebac5f
Cr-Commit-Position: refs/heads/master@{#396807}
==========

[commit-bot: I haz the power, 2016-05-31 09:16:53]

Patchset 1 (id:??) landed as
https://crrev.com/3655785fa021e9bc0ace8412a4014c80c2ebac5f
Cr-Commit-Position: refs/heads/master@{#396807}