RMX1971: sepolicy: Address fingerprint denial

* avc: denied { write } for comm="vendor.oplus.ha" name="regulator_enable" dev="sysfs" ino=69183 scontext=u:r:hal_fingerprint_default:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=0

* Also add permissions for fpc sysfs nodes in ueventd.qcom.rc
- E fpc_tac : fpc_sysfs_node_write openat: regulator_enable failed, Permission denied

Signed-off-by: kaderbava <ksbava7325@gmail.com>