[MIPS] Fix library order and includes for breakpad test

[MIPS] Fix library order and includes for breakpad test

Add missing header location for linux_dumper_unittest_helper for Android. It
is required to correctly locate sgidefs.h.
In addition, this change removes duplicate '-ldl', since the order of listed
libraries is important for GNU ld (still used for some architectures such as
MIPS).

BUG= fail to build breakpad tests for MIPS
TEST= build breakpad tests MIPS-Android

[petarj, 2013-10-04 15:36:26]

PTAL.

[Mark Mentovai, 2013-10-04 16:02:20]

LGTM

[commit-bot: I haz the power, 2013-10-04 16:06:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/petarj@mips.com/26006002/1

[commit-bot: I haz the power, 2013-10-04 16:11:59]

Step "update" is always a major failure.
Look at the try server FAQ for more details.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android_cl...

[commit-bot: I haz the power, 2013-10-04 16:28:40]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/petarj@mips.com/26006002/36001

[commit-bot: I haz the power, 2013-10-04 19:31:46]

Change committed as 227052