Use custom function to hack props without increasing prop change counter

- some apps were detecting tampered props from the increased prop_info serial counter using resetprop
- patching doesn't rely on magiskboot hexpatch so should work on KernelSU and APatch as well
- hopefully temporary until all root solutions adopt a patched system_properties repo to fix counters via resetprop

module/post-fs-data.sh

@@ -1,3 +1,6 @@
+MODDIR="${0%/*}"
+. "$MODDIR/common.sh"
+
 # Remove Play Services from Magisk Denylist when set to enforcing
 if magisk --denylist status; then
     magisk --denylist rm com.google.android.gms
@@ -10,21 +13,6 @@ fi
 
 # Conditional early sensitive properties
 
-resetprop_if_diff() {
-    local NAME=$1
-    local EXPECTED=$2
-    local CURRENT=$(resetprop $NAME)
-
-    [ -z "$CURRENT" ] || [ "$CURRENT" == "$EXPECTED" ] || resetprop $NAME $EXPECTED
-}
-resetprop_if_match() {
-    local NAME=$1
-    local CONTAINS=$2
-    local VALUE=$3
-
-    [[ "$(resetprop $NAME)" == *"$CONTAINS"* ]] && resetprop $NAME $VALUE
-}
-
 # RootBeer, Microsoft
 resetprop_if_diff ro.build.tags release-keys