ASoC: dt-bindings: qcom,q6prm: Split to separate schema

The APR/GPR bindings with services got complicated so move out the Q6PRM
service to its own binding.  Previously the compatible was documented in
qcom,apr.yaml.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221115120235.167812-9-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/qcom,q6prm.yaml

+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,q6prm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Proxy Resource Manager (Q6PRM)
+
+maintainers:
+  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+allOf:
+  - $ref: /schemas/soc/qcom/qcom,apr-services.yaml#
+
+properties:
+  compatible:
+    enum:
+      - qcom,q6prm
+
+  clock-controller:
+    $ref: /schemas/sound/qcom,q6dsp-lpass-clocks.yaml#
+    unevaluatedProperties: false
+    description: Qualcomm DSP LPASS clock controller
+
+required:
+  - compatible
+  - clock-controller
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/qcom,gpr.h>
+
+    gpr {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        service@2 {
+            reg = <GPR_PRM_MODULE_IID>;
+            compatible = "qcom,q6prm";
+            qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+
+            clock-controller {
+                compatible = "qcom,q6prm-lpass-clocks";
+                #clock-cells = <2>;
+            };
+        };
+    };