Add libselinux_vendor

Removed dependency on libpackageparser
Retained dependency on libpcre2

android_seapp.c = non-vendor functions
android.c = functions common to vendor and non-vendor

exported_vendor.map contains map for libselinux_vendor

(cherry-picked from commit cc1666de053bbe500d9427a4572839e705720c44)

Bug: 37343404
Test: Build vndservicemanager, libselinux.so and libselinux_vendor.so
Verify normal boot on sailfish and pass CTS Security
Merged-In: I020b1333ad4628b831c94a27f07d880f73dbde7a

Change-Id: I0ffc621ceb53b3531df458611f1322ebecd2da20
5 files changed