Add mips support to install-debian.wheezy.sysroot.py

Add mips support to install-debian.wheezy.sysroot.py

Also, fix remaining issues with sysroot-creator.sh
WRT mips.  Not sure I missed those the first time.

TEST=GYP_DEFINES=target_arch=mipsel gclient runhooks

Committed: https://crrev.com/33b96bf8e29a1528360188216474ea4f34eea276
Cr-Commit-Position: refs/heads/master@{#332972}

[Sam Clegg, 2015-06-04 22:17:35]

sbc@chromium.org changed reviewers:
+ thestig@chromium.org

[Sam Clegg, 2015-06-04 22:37:31]

The CQ bit was checked by sbc@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-06-04 22:39:29]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1164073004/1

[Lei Zhang, 2015-06-04 22:43:45]

lgtm

https://codereview.chromium.org/1164073004/diff/1/chrome/installer/linux/sysr...
File chrome/installer/linux/sysroot_scripts/sysroot-creator.sh (right):

https://codereview.chromium.org/1164073004/diff/1/chrome/installer/linux/sysr...
chrome/installer/linux/sysroot_scripts/sysroot-creator.sh:325: #SubBanner
"Rewriting Linker Scripts"
Either uncomment or erase.

[Sam Clegg, 2015-06-04 22:45:37]

On 2015/06/04 22:43:45, Lei Zhang wrote:
> lgtm
> 
>
https://codereview.chromium.org/1164073004/diff/1/chrome/installer/linux/sysr...
> File chrome/installer/linux/sysroot_scripts/sysroot-creator.sh (right):
> 
>
https://codereview.chromium.org/1164073004/diff/1/chrome/installer/linux/sysr...
> chrome/installer/linux/sysroot_scripts/sysroot-creator.sh:325: #SubBanner
> "Rewriting Linker Scripts"
> Either uncomment or erase.

Done.

[Sam Clegg, 2015-06-04 22:45:42]

The CQ bit was checked by sbc@chromium.org

[Sam Clegg, 2015-06-04 22:45:43]

The patchset sent to the CQ was uploaded after l-g-t-m from thestig@chromium.org
Link to the patchset: https://codereview.chromium.org/1164073004/#ps20001
(title: " ")

[commit-bot: I haz the power, 2015-06-04 22:46:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1164073004/20001

[commit-bot: I haz the power, 2015-06-05 00:07:11]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-06-05 00:08:23]

Patchset 2 (id:??) landed as
https://crrev.com/33b96bf8e29a1528360188216474ea4f34eea276
Cr-Commit-Position: refs/heads/master@{#332972}