dt-bindings: clock: exynosautov9: fix reference to CMU_FSYS1

Fix reference to CMU_FSYS1 mmc card clock to gout clock instead of dout.

"gout" is output of a gate clock.  Unlike any other clocks, the fsys1
mmc top clock does not have a divider, so it should be "mout -> gout"
instead of "mout -> gout -> dout".

This fixes make dtbs_check warning as shown below:

  arch/arm64/boot/dts/exynos/exynosautov9-sadk.dtb: clock-controller@17040000:
    clock-names:2: 'dout_clkcmu_fsys1_mmc_card' was expected

Fixes: 4b6ec8d8 ("dt-bindings: clock: exynosautov9: add schema for cmu_fsys0/1")
Reviewed-by: NChanho Park <chanho61.park@samsung.com>
Signed-off-by: NInbaraj E <inbaraj.e@samsung.com>
Link: https://lore.kernel.org/r/20221107124337.114135-1-inbaraj.e@samsung.comSigned-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml

@@ -148,7 +148,7 @@ allOf:
           items:
             - const: oscclk
             - const: dout_clkcmu_fsys1_bus
-            - const: dout_clkcmu_fsys1_mmc_card
+            - const: gout_clkcmu_fsys1_mmc_card
             - const: dout_clkcmu_fsys1_usbdrd
 
   - if: