irqchip/gic: Correctly validate OF quirk descriptors

When checking for OF quirks, make sure either 'compatible' or 'property'
is set, and give up otherwise.

This avoids non-OF quirks being randomly applied as they don't have any
of the OF data that need checking.

Cc: Douglas Anderson <[e-mail]>
Reported-by: Geert Uytterhoeven <[e-mail]>
Tested-by: Geert Uytterhoeven <[e-mail]>
Fixes: 44bd78dd2b88 ("irqchip/gic-v3: Disable pseudo NMIs on Mediatek devices w/ firmware issues")
Signed-off-by: Marc Zyngier <[e-mail]>

drivers/irqchip/irq-gic-common.c

···
 			  const struct gic_quirk *quirks, void *data)
 {
 	for (; quirks->desc; quirks++) {
+		if (!quirks->compatible && !quirks->property)
+			continue;
 		if (quirks->compatible &&
 		    !of_device_is_compatible(np, quirks->compatible))
 			continue;