Build: Fix tf-m-example-ns-app build for RP2350

The RP2350 platform NS build requires an ASM compiler, so ASM must be
specified as a language used by the project

Change-Id: Ifcdd7c30e15f215161f9510ee26c46d6829b2a22
Signed-off-by: William Vinnicombe <william.vinnicombe@raspberrypi.com>
1 file changed