ANDROID: PM: hibernate: Encryption support with compression

Currently only the uncompressed hibernation snapshot image is encrypted
before being written to the swap partition. Extend the encryption
support for compression enabled scenarios as well.

Bug: 335581841
Change-Id: Ida781b727f56b664a67e2887a4db3d6b355dafdb
Signed-off-by: Nikhil V <quic_nprakash@quicinc.com>