dt-bindings: phy: amlogic,meson-axg-mipi-pcie-analog: remove phy cell parameter

The Amlogic AXG MIPI + PCIe Analog PHY provides function for both PCIe and
MIPI DSI at the same time, and is not exclusive.

Thus remove the invalid phy cell parameter.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201116101647.73448-3-narmstrong@baylibre.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

Documentation/devicetree/bindings/phy/amlogic,meson-axg-mipi-pcie-analog.yaml

@@ -24,7 +24,7 @@ properties:
     const: amlogic,axg-mipi-pcie-analog-phy
 
   "#phy-cells":
-    const: 1
+    const: 0
 
 required:
   - compatible
@@ -36,5 +36,5 @@ examples:
   - |
     mpphy: phy {
           compatible = "amlogic,axg-mipi-pcie-analog-phy";
-          #phy-cells = <1>;
+          #phy-cells = <0>;
     };