dt-bindings: mfd: qcom,spmi-pmic: Add pattern property for phy

The phy pattern property will be used for providing eUSB2 repeater
functionality. This will be modelled as a Qualcomm PHY driver.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230510082725.3612903-1-abel.vesa@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml

@@ -146,6 +146,10 @@ patternProperties:
     type: object
     $ref: /schemas/nvmem/qcom,spmi-sdam.yaml#
 
+  "phy@[0-9a-f]+$":
+    type: object
+    $ref: /schemas/phy/qcom,snps-eusb2-repeater.yaml#
+
   "pon@[0-9a-f]+$":
     type: object
     $ref: /schemas/power/reset/qcom,pon.yaml#