RMX1921: overlay: Correct SystemUI apk name and path for pinner service

APK name and path was changed as seen here
PixelExperience/vendor_pixel-framework@8be4fc8

This causes errors in logs since pinner was trying to pin old app.

PinnerService: Could not pin file /system_ext/priv-app/SystemUI/SystemUI.apk
PinnerService: Failed to pin file = /system_ext/priv-app/SystemUI/SystemUI.apk

Signed-off-by: kaderbava <ksbava7325@gmail.com>