dt-bindings: pinctrl: mediatek,pinctrl-mt6795: Fix interrupt count

The document currently states a maximum of 1 interrupt, but the DT
has 2 specified causing a dtbs_check error. Replace the maximum limit
with a minimum and add per-interrupt descriptions to pass the check.

Fixes: 81557a71564a ("dt-bindings: pinctrl: Add MediaTek MT6795 pinctrl bindings")
Suggested-by: AngeloGioacchino Del Regno <[e-mail]>
Signed-off-by: Yassine Oudjana <[e-mail]>
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

Documentation/devicetree/bindings/pinctrl/mediatek,pinctrl-mt6795.yaml

···
 
   interrupts:
     description: The interrupt outputs to sysirq.
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: EINT interrupt
+      - description: EINT event_b interrupt
 
 # PIN CONFIGURATION NODES
 patternProperties: