Allow fingerprint to access the folder /data/vendor/fingerprint

Fix the following avc denial:
android.hardwar: type=1400 audit(0.0:20): avc:  denied  { write } for  name="fingerprint" dev="dm-56" ino=36703 scontext=u:r:hal_fingerprint_default:s0 tcontext=u:object_r:vendor_data_file:s0 tclass=dir permissive=0

Bug: 267766859
Test: Tested fingerprint under enforcing mode
Change-Id: I11c465fe89fcbfa7d9132ccee1c7666d1cd75a24
diff --git a/whitechapel_pro/file_contexts b/whitechapel_pro/file_contexts
index f7216f6..4bed047 100644
--- a/whitechapel_pro/file_contexts
+++ b/whitechapel_pro/file_contexts
@@ -208,6 +208,7 @@
 /dev/maxfg_history                                                          u:object_r:battery_history_device:s0
 /dev/battery_history                                                        u:object_r:battery_history_device:s0
 /data/vendor/powerstats(/.*)?                                               u:object_r:powerstats_vendor_data_file:s0
+/data/vendor/fingerprint(/.*)?                                              u:object_r:fingerprint_vendor_data_file:s0
 
 # Persist
 /mnt/vendor/persist/battery(/.*)?                                           u:object_r:persist_battery_file:s0