Cleanup ImageTest skip conditions Early-return with a compiler guard prevents a test from being recorded in the skip test list log. Make sure to use the "ANGLE_SKIP_TEST_IF" macros for AHB tests. Bug: angleproject:40644776 Change-Id: I3e15203b8e17512ecb89abc7e53769c06b770213 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5842744 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: mohan maiya <m.maiya@samsung.com>