raviole: allow UDFPS to read mfg_data blk device

Bug: 189135413
Test: fastboot stage cal_file; fastboot oem udfps update-cal; HAL sends CAL
Change-Id: Ib9f236bb49d3aa961edcc113c6e6aaa94927f454
diff --git a/conf/init.raviole.rc b/conf/init.raviole.rc
index a14423d..d8bd1b3 100644
--- a/conf/init.raviole.rc
+++ b/conf/init.raviole.rc
@@ -37,6 +37,7 @@
 on post-fs-data
     # Fingerprint
     chown system system /dev/goodix_fp
+    chown system system /dev/block/platform/14700000.ufs/by-name/mfg_data
     exec_background - system shell -- /vendor/bin/trusty_apploader /vendor/firmware/g6.app
 
     # Start the twoshay touch service