dt-bindings: pinctrl: spacemit: add clock and reset property

SpacemiT K1 SoC's pinctrl controller requires two clocks in order
to work properly, also has one reset line from hardware perspective.

Signed-off-by: Yixun Lan <[e-mail]>
Reviewed-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

Documentation/devicetree/bindings/pinctrl/spacemit,k1-pinctrl.yaml

···
     items:
       - description: pinctrl io memory base
 
+  clocks:
+    items:
+      - description: Functional Clock
+      - description: Bus Clock
+
+  clock-names:
+    items:
+      - const: func
+      - const: bus
+
+  resets:
+    maxItems: 1
+
 patternProperties:
   '-cfg$':
     type: object
···
 required:
   - compatible
   - reg
+  - clocks
+  - clock-names
 
 additionalProperties: false
 
···
         pinctrl@d401e000 {
             compatible = "spacemit,k1-pinctrl";
             reg = <0x0 0xd401e000 0x0 0x400>;
+            clocks = <&syscon_apbc 42>,
+                     <&syscon_apbc 94>;
+            clock-names = "func", "bus";
 
             uart0_2_cfg: uart0-2-cfg {
                 uart0-2-pins {