vndk-def: Add workaround for extra VNDK-SP-Private

This commit adds a workaround for extra VNDK-SP-Private libraries that
are VNDK-SP-Private when BOARD_VNDK_VERSION is NOT set.

Test: Run definition tool on marlin/sailfish
Change-Id: I7b54582f71a4febbcd0658338499b8f98afbbbfa
1 file changed