[MIPS] Fix issue with sysroot_ld_path.py returning empty string

[MIPS] Fix issue with sysroot_ld_path.py returning empty string

This change fixes ld.bfd failure when GN is used,
which was caused by missing "-Wl,-rpath-link=" path.

BUG=616082
TEST=Build Chromium for Linux MIPS using ld.bfd and GN

Committed: https://crrev.com/75522f446b904fb6a68ed38a02ed4ff8aa321188
Cr-Commit-Position: refs/heads/master@{#397086}

[lmilko, 2016-05-31 13:41:28]

milko.leporis@imgtec.com changed reviewers:
+ brettw@chromium.org

[lmilko, 2016-05-31 13:41:29]

More details are in issue 
https://bugs.chromium.org/p/chromium/issues/detail?id=616082

Please take a look.

[brettw, 2016-05-31 19:29:16]

lgtm

[lmilko, 2016-06-01 07:51:04]

The CQ bit was checked by milko.leporis@imgtec.com

[commit-bot: I haz the power, 2016-06-01 07:51:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2025883002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2025883002/1

[commit-bot: I haz the power, 2016-06-01 08:55:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-01 08:57:05]

Description was changed from

==========
[MIPS] Fix issue with sysroot_ld_path.py returning empty string

This change fixes ld.bfd failure when GN is used,
which was caused by missing "-Wl,-rpath-link=" path.

BUG=616082
TEST=Build Chromium for Linux MIPS using ld.bfd and GN
==========

to

==========
[MIPS] Fix issue with sysroot_ld_path.py returning empty string

This change fixes ld.bfd failure when GN is used,
which was caused by missing "-Wl,-rpath-link=" path.

BUG=616082
TEST=Build Chromium for Linux MIPS using ld.bfd and GN

Committed: https://crrev.com/75522f446b904fb6a68ed38a02ed4ff8aa321188
Cr-Commit-Position: refs/heads/master@{#397086}
==========

[commit-bot: I haz the power, 2016-06-01 08:57:06]

Patchset 1 (id:??) landed as
https://crrev.com/75522f446b904fb6a68ed38a02ed4ff8aa321188
Cr-Commit-Position: refs/heads/master@{#397086}