[CTS] Test for Merkle tree bit flipped case

This also correcet thee filename of an existing test as it
only had 1mb (instead of 10mb) trailing data after the Merkle tree.

Test: atest
android.appsecurity.cts.PkgInstallSignatureVerificationTest#testInstallV4WithMerkleTreeBitsFlipped

BUG: 157262973
Change-Id: I7ad29fcf59f74055baa1d76d049f2b5deb121f59
5 files changed