dt-bindings: firmware: arm,scpi: Move arm,scp-shmem to json schema

Move the SRAM and shared memory binding for SCPI into the existing
Generic on-chip SRAM. We just need to update the compatible list and
there-by remove the whole old text format binding for the same.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20210601224904.917990-2-sudeep.holla@arm.com
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/arm/arm,scpi.txt

@@ -56,21 +56,6 @@ Other required properties for all clocks(all from common clock binding):
 	node. It can be non linear and hence provide the mapping of identifiers
 	into the clock-output-names array.
 
-SRAM and Shared Memory for SCPI
--------------------------------
-
-A small area of SRAM is reserved for SCPI communication between application
-processors and SCP.
-
-The properties should follow the generic mmio-sram description found in [3]
-
-Each sub-node represents the reserved area for SCPI.
-
-Required sub-node properties:
-- reg : The base offset and size of the reserved area with the SRAM
-- compatible : should be "arm,scp-shmem" for Non-secure SRAM based
-	       shared memory
-
 Sensor bindings for the sensors based on SCPI Message Protocol
 --------------------------------------------------------------
 SCPI provides an API to access the various sensors on the SoC.

Documentation/devicetree/bindings/sram/sram.yaml

@@ -80,6 +80,7 @@ patternProperties:
             - amlogic,meson8b-smp-sram
             - amlogic,meson-gxbb-scp-shmem
             - amlogic,meson-axg-scp-shmem
+            - arm,scp-shmem
             - renesas,smp-sram
             - rockchip,rk3066-smp-sram
             - samsung,exynos4210-sysram