Use llndk.libraries.txt from system if VNDK is deprecated

llndk.libraries.txt will be relocated into system when VNDK is
deprecated. This change sets a new location to load llndk.libraries.txt
when VNDK is deprecated.

Bug: 290160925
Test: aosp_cf build and boot succeeded with llndk.libraries.txt in the
system image

Change-Id: I3022910a4e2c9852e2dfe520e1a6e06a9de21f76
1 file changed