Update run_android_tests.go for test cert changes.
Change-Id: I6741f374dc69e8d4dd3977f607c3c5688eeabfd7
Reviewed-on: https://boringssl-review.googlesource.com/8744
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>