package/python-rpi-gpio: enable package on aarch64

Enable the python-rpi-gpio package on 64-bit ARM architectures. I've tested
this with a Raspberry Pi 4 64-bit and Python 3 build and it works as expected.

Signed-off-by: Mirza Kapetanovic <mirza.kapetanovic@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/python-rpi-gpio/Config.in

@@ -1,6 +1,6 @@
 config BR2_PACKAGE_PYTHON_RPI_GPIO
 	bool "python-rpi-gpio"
-	depends on BR2_arm
+	depends on BR2_arm || BR2_aarch64
 	help
 	  A Python module to control the GPIO on a Raspberry Pi.