PASN: Android.mk change to enable libpasn.so

PASN library is required for Aware 4.0 to support NAN Pairing for
Android U. Android.mk changes to enable libpasn.so generation

Bug: 277854803
Test: presubmit tests
Change-Id: Ib4bbe2eb118a64e150fb11ffb699e15fa229bff5
1 file changed