Update aapt check to aapt2

default have been changed, and docs are updated

Test: presubmit
Bug: 314921364
(cherry picked from https://android-review.googlesource.com/q/commit:42a4ec4da99037d34660020015000b784a3cf74f)
Merged-In: Ibf055953b47d646477b62dd7102f9f2d6cc52631
Change-Id: Ibf055953b47d646477b62dd7102f9f2d6cc52631
1 file changed