[moblab] Fix some issues in the CTS/GTS uprev scripts.

Enhanced the P scripts

Change-Id: I3fac484243cf0fcf37191ac012e2fbc3164be209
Reviewed-on: https://chromium-review.googlesource.com/1534260
Commit-Ready: Keith Haddow <haddowk@chromium.org>
Tested-by: Keith Haddow <haddowk@chromium.org>
Reviewed-by: Matt Mallett <mattmallett@chromium.org>
4 files changed