This also makes the resulting zip files more repeatable -- the file list
is sorted and the entries have static timestamps.
On my machine, this saves ~30 seconds for android-cts.zip, it now takes
less than a second.
Test: m -j cts; compare output from without this change
Change-Id: Ia71e35878ff98ba9775115860530e87eee47739f
Enable client-side dynamic config code to access the suite-level dynamic
config files by placing them in the testcases directory. Also update
cts_v2.mk to define the location of its corresponding dynamic config file.
bug:23625592
Change-Id: Id11dea4b6acbe8ea7e5e9579e369a2be5873a224
