spi: dt-bindings: microchip-core: Revert "spi: dt-bindings: fix the number of default and maximum CS"

Reverts commit e0a5db8 as the original
1 was correct, and the modification to 2 a result of confusion from the
MSS configurator!

Signed-off-by: Conor Dooley <[email protected]>

Author: ConchuOD

Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml

@@ -51,7 +51,7 @@ allOf:
     then:
       properties:
         num-cs:
-          default: 2
+          default: 1
 
   - if:
       properties:
@@ -64,7 +64,7 @@ allOf:
     then:
       properties:
         num-cs:
-          maximum: 2
+          maximum: 1
 
 unevaluatedProperties: false