vendor: whitelist privapp permissions

idea from: https://review.lineageos.org/#/c/209859/

Change-Id: Iaed7ec4960175bf837425424f96bd452c81fb298
docs: https://source.android.com/devices/tech/config/perms-whitelist
diff --git a/config/common.mk b/config/common.mk
index c1b32b8..27d856c 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -54,6 +54,10 @@
 PRODUCT_COPY_FILES += \
     frameworks/native/data/etc/android.software.sip.voip.xml:system/etc/permissions/android.software.sip.voip.xml
 
+#permissions
+PRODUCT_COPY_FILES += \
+    vendor/omni/prebuilt/etc/permissions/privapp-permissions-omni.xml:system/etc/permissions/privapp-permissions-omni.xml
+
 # custom omni sounds
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.config.ringtone=omni_ringtone1.ogg \