Add sepolicy for allowing accessing bluetooth uart and lpm related
device nodes

* set /dev/ttySAC18, /dev/logbuffer_tty18 and /dev/logbuffer_btlpm
device node permission for P22 bluetooth projacts

Bug: 207062775
Bug: 208721525
Test: Manually
Change-Id: I17d70d7464d3381aeb166a663d0276e29951ce0b
4 files changed