dt-bindings: crypto: ti,omap-sham: Convert to dtschema

Convert the OMAP SoC SHA crypto Module bindings to DT Schema.
Signed-off-by: Animesh Agarwal <animeshagarwal28@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Documentation/devicetree/bindings/crypto/omap-sham.txt

-OMAP SoC SHA crypto Module
-
-Required properties:
-
-- compatible : Should contain entries for this and backward compatible
-  SHAM versions:
-  - "ti,omap2-sham" for OMAP2 & OMAP3.
-  - "ti,omap4-sham" for OMAP4 and AM33XX.
-  - "ti,omap5-sham" for OMAP5, DRA7 and AM43XX.
-- ti,hwmods: Name of the hwmod associated with the SHAM module
-- reg : Offset and length of the register set for the module
-- interrupts : the interrupt-specifier for the SHAM module.
-
-Optional properties:
-- dmas: DMA specifiers for the rx dma. See the DMA client binding,
-	Documentation/devicetree/bindings/dma/dma.txt
-- dma-names: DMA request name. Should be "rx" if a dma is present.
-
-Example:
-	/* AM335x */
-	sham: sham@53100000 {
-		compatible = "ti,omap4-sham";
-		ti,hwmods = "sham";
-		reg = <0x53100000 0x200>;
-		interrupts = <109>;
-		dmas = <&edma 36>;
-		dma-names = "rx";
-	};

Documentation/devicetree/bindings/crypto/ti,omap-sham.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/ti,omap-sham.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OMAP SoC SHA crypto Module
+
+maintainers:
+  - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - ti,omap2-sham
+      - ti,omap4-sham
+      - ti,omap5-sham
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  dmas:
+    maxItems: 1
+
+  dma-names:
+    const: rx
+
+  ti,hwmods:
+    description: Name of the hwmod associated with the SHAM module
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [sham]
+
+dependencies:
+  dmas: [dma-names]
+
+additionalProperties: false
+
+required:
+  - compatible
+  - ti,hwmods
+  - reg
+  - interrupts
+
+examples:
+  - |
+    sham@53100000 {
+        compatible = "ti,omap4-sham";
+        ti,hwmods = "sham";
+        reg = <0x53100000 0x200>;
+        interrupts = <109>;
+        dmas = <&edma 36>;
+        dma-names = "rx";
+    };