dt-bindings: clock: imx8mp: add axi clock

Some components of AUDIOMIX (i.e: DSP, OCRAM_A) are clocked by
AUDIO_AXI_CLK_ROOT. Since the AUDIOMIX block control manages the clock
gates for those components, include their root clock in the list of clocks
consumed by the IP.

Fixes: 95a0aa7bb10e ("dt-bindings: clock: imx8mp: Add audiomix block control")
Signed-off-by: Laurentiu Mihalcea <[e-mail]>
Reviewed-by: Iuliana Prodan <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Peng Fan <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Abel Vesa <[e-mail]>

Documentation/devicetree/bindings/clock/imx8mp-audiomix.yaml

···
     maxItems: 1
 
   clocks:
-    minItems: 7
-    maxItems: 7
+    minItems: 8
+    maxItems: 8
 
   clock-names:
     items:
···
       - const: sai5
       - const: sai6
       - const: sai7
+      - const: axi
 
   '#clock-cells':
     const: 1
···
                  <&clk IMX8MP_CLK_SAI3>,
                  <&clk IMX8MP_CLK_SAI5>,
                  <&clk IMX8MP_CLK_SAI6>,
-                 <&clk IMX8MP_CLK_SAI7>;
+                 <&clk IMX8MP_CLK_SAI7>,
+                 <&clk IMX8MP_CLK_AUDIO_AXI_ROOT>;
         clock-names = "ahb",
                       "sai1", "sai2", "sai3",
-                      "sai5", "sai6", "sai7";
+                      "sai5", "sai6", "sai7", "axi";
         power-domains = <&pgc_audio>;
     };