don't compress JNI libs extracted from aar_import

APKs expect JNI libs in the libs folder to be stored uncompressed, so we
should not compress libs that we extract from the AAR.

Bug: 280339573
Test: m AiWallpapers before this change &&
  compare to AiWallpapers with ag/22948656
Change-Id: I63baa3763bc01c74d8df9b0b3e035ea50c31904c