S666LN: vendorsetup: Refactor vendorsetup.sh

* So if a patch fails, it won't leave source trees in a broken state

Signed-off-by: Shirayuki39 <lorddemecrius83@proton.me>
Signed-off-by: KimelaZX <mmikailrei@gmail.com>

vendorsetup.sh

@@ -2,5 +2,14 @@
 
 echo "- Applying Aperture Mediatek HFPS Mode Patch"
 cd packages/apps/Aperture
-curl https://github.com/Nothing-2A/android_packages_apps_Aperture/commit/9509277efc852ad8bdcce204e0d9cfe104b6d190.patch | git am
-cd ../../../
+curl https://github.com/Nothing-2A/android_packages_apps_Aperture/commit/9509277efc852ad8bdcce204e0d9cfe104b6d190.patch | git am || {
+  RET=$?
+  git am --abort >/dev/null 2>&1
+}
+cd ../../../
+
+if [ $RET -ne 0 ]; then
+  echo "ERROR: Patch is not applied! Maybe it's already patched, or you'll have to adapt it to this specific rom source?"
+else
+  echo "OK: All patched"
+fi