selinux: CM policies are now inserted last

Inclusion of the makefile is done by the build system to enforce
the wanted order

Change-Id: I86d7c6fb08b6bb1f6e0385e951a54827345aaf84
(cherry picked from commit 8521d46944fd3e880b4f8ec50e01d0a5f496af23)
Update the GMS location provider name

Change-Id: I8703838c9c2ce703e32f358edc1f1d73558b47e0
(cherry picked from commit 75fb1555abb7b38552c61b28827b592760a6f9aa)
selinux: Add CM-specific file_contexts

Change-Id: Ie70c59acedbb7be2f5b34a83c1d3d011f440ba05
(cherry picked from commit ac8d09538e0c2d2c6cb593354df7c05a0a92afb2)
selinux: Add missing seapp_contexts file

Change-Id: I6bda9e4876b9053ea16fe3c11c21b9c1e7acb17a
(cherry picked from commit e58e23e131a4f133db616248b0ec7999c0e078c5)