Revert "Revert "ANDROID: syscall_check: add vendor hook for open..."

Revert submission 3100087

Reason for revert: This vendor hook is used by mediatek and was added
to their symbol list in https://r.android.com/3129673

.

Reverted changes: /q/submissionid:3100087

Bug: 346668305
Signed-off-by: Will McVicker <willmcvicker@google.com>
Change-Id: I651a1caeb8ebdbe7dfde0908b20f27c028244921