[incremental] respect extractNativeLibs in native lib config

Makes sure the behavior is consistent with legacy installs:

When the flag is on, the native libs will be extracted to subdirs under
lib/.
When the flag is off, the lib/ subdirs will be created but the native
libs are not extracted.
When the flag is off, check if the native libs are uncompressed and well
aligned.

Test: atest android.extractnativelibs.cts.CtsExtractNativeLibsHostTest
BUG: 157173358
Change-Id: Idb57fd7ca1115f787faf5cde3056c32ff3f60890