Make sure dwc overlay gets added if does not exist

Author: brickbots

migration_source/v2.2.2.sh

@@ -1,3 +1,7 @@
 # Enable usb-host on usb-c port
-sudo sed -zi "s/dtoverlay=dwc2/dtoverlay=dwc2,dr_mode=host/" /boot/config.txt
 
+#Add it to the dw2 line if it exist
+sudo sed -zi "s/dtoverlay=dwc2\n/dtoverlay=dwc2,dr_mode=host\n/" /boot/config.txt
+
+#Add the line if it does not exist
+sudo sed -zi '/dtoverlay=dwc2,dr_mode=host\n/!s/$/\ndtoverlay=dwc2,dr_mode=host\n/' /boot/config.txt