dt-bindings: bcm2835-cprman: Add bcm2711 support

The new BCM2711 supports an additional clock for the emmc2 block.
So we need an additional compatible.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>

Documentation/devicetree/bindings/clock/brcm,bcm2835-cprman.txt

@@ -12,7 +12,9 @@ clock generators, but a few (like the ARM or HDMI) will source from
 the PLL dividers directly.
 
 Required properties:
-- compatible:	Should be "brcm,bcm2835-cprman"
+- compatible:	should be one of the following,
+	"brcm,bcm2711-cprman"
+	"brcm,bcm2835-cprman"
 - #clock-cells:	Should be <1>. The permitted clock-specifier values can be
 		  found in include/dt-bindings/clock/bcm2835.h
 - reg:		Specifies base physical address and size of the registers

include/dt-bindings/clock/bcm2835.h

@@ -58,3 +58,5 @@
 #define BCM2835_CLOCK_DSI1E		48
 #define BCM2835_CLOCK_DSI0P		49
 #define BCM2835_CLOCK_DSI1P		50
+
+#define BCM2711_CLOCK_EMMC2		51