Block allocateBufferWithBackup in secure native handle mode

Bug: 63522818
Test: CtsMediaTestCases & YT & Play Movies & Cast
Change-Id: I2be2748ecabf49d7842a90676e68978bf0c56b71
(cherry picked from commit 528c7dd7c2387ac634b23973d0c1120d0f3d7ee7)
1 file changed