Allow repopick to cherry-pick a specific patch set

Use 'repopick 123456/9' where '123456' is the change number
and '9' is the desired patchset.

Change-Id: I2d9f6939fbde50b2a6057b75d2e7f722be5a3e21
Improve cmremote

Change-Id: I7e1f87ed92cddcf8df3ea4fd701f56a9ef806add
Enabling sdiv support in ART

Added more target into ART instruction set feature look-up list

Change-Id: I0ea0097181e5c76507b8ca2a34cf37d2e2ca6403