dt-bindings: soc: mobileye: set #clock-cells = <1> for all compatibles

Some compatibles expose a single clock. For those, we used to let them
using `#clock-cells = <0>` (ie <&olb> reference rather than <&olb 0>).

Switch away from that: enforce a cell for all compatibles. This is more
straight forward, and avoids devicetree changes whenever a compatible
goes from exposing a single clock to multiple ones. Also, dt-bindings
get simpler.

*This is an ABI break*. Change it while EyeQ5 platform support is at its
infancy, without any user. More clocks might hide in each OLB as some
registers are still unknown.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20241106-mbly-clk-v2-1-84cfefb3f485@bootlin.com
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml

@@ -41,9 +41,7 @@ properties:
     enum: [ 1, 2 ]
 
   '#clock-cells':
-    description:
-      Cell is clock index. Optional if compatible has a single clock.
-    enum: [ 0, 1 ]
+    const: 1
 
   clocks:
     maxItems: 1
@@ -312,26 +310,6 @@ allOf:
       properties:
         '#reset-cells': false
 
-    # Compatibles exposing a single clock.
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - mobileye,eyeq6h-central-olb
-              - mobileye,eyeq6h-east-olb
-              - mobileye,eyeq6h-west-olb
-              - mobileye,eyeq6h-ddr0-olb
-              - mobileye,eyeq6h-ddr1-olb
-    then:
-      properties:
-        '#clock-cells':
-          const: 0
-    else:
-      properties:
-        '#clock-cells':
-          const: 1
-
     # Only EyeQ5 has pinctrl in OLB.
   - if:
       not: