FP3: Adding com.skyhook.blp into the whitelist

Adding com.skyhook.blp into whitelist to avoid it being killed by
doze. Also adding INTERACT_ACROSS_USERS permission to be able to
run as single user.

Change-Id: I245965c87e7a5029eb8a308af24484d64a3fcb87
CRs-Fixed: 2294320