dt-bindings: sram: sunxi: Add compatible for the A64 SRAM C1

This introduces a new compatible for the A64 SRAM C1 section, that is
compatible with the SRAM C1 section as found on the A10.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

Documentation/devicetree/bindings/sram/sunxi-sram.txt

@@ -56,6 +56,7 @@ The valid sections compatible for H3 are:
 
 The valid sections compatible for A64 are:
     - allwinner,sun50i-a64-sram-c
+    - allwinner,sun50i-a64-sram-c1, allwinner,sun4i-a10-sram-c1
 
 The valid sections compatible for H5 are:
     - allwinner,sun50i-h5-sram-c1, allwinner,sun4i-a10-sram-c1