Backend: work around KernelSU not processing modules on initial install

- KernelSU currently requires the Manager app be run after first rooted to dump /data/adb/ksud, and then it will process any pending modules_update.img on the next reboot
- the above is problematic since some custom kernels providing KernelSU support will require a working module system to overlay .ko kernel modules needed for feature support and sometimes the ROM won't boot without these matching
- work around this KernelSU behavior by dumping ksud ourselves as-needed during the AK3 helper module installation, allowing seamless initial KernelSU kernel support installation with AK3 helper module .ko support

See: https://github.com/tiann/KernelSU/issues/945

META-INF/com/google/android/update-binary

@@ -430,6 +430,10 @@ do_modules() {
       # this may be the initial KernelSU install or first module so setup as needed
       if [ -f $AKHOME/kernelsu_patched ]; then
         umask 077;
+        if [ ! -f /data/adb/ksud ]; then
+          cp -f /data/app/*/me.weishu.kernelsu*/lib/*/libksud.so /data/adb/ksud;
+          chmod 755 /data/adb/ksud;
+        fi;
         if [ ! -d /data/adb/modules ]; then
           mkdir -p /data/adb/modules;
           chmod 777 /data/adb/modules;