dt-bindings: display: ssd1307fb: Add entry for SINO WEALTH SH1106

The SINO WEALTH SH1106 is an OLED display driver that is somewhat
compatible with the SSD1306. It supports a slightly wider display,
at 132 instead of 128 pixels. The basic commands are the same, but
the SH1106 doesn't support the horizontal or vertical address modes.

Add a compatible string for it.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220406172956.3953-3-wens@kernel.org

Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml

@@ -13,6 +13,7 @@ maintainers:
 properties:
   compatible:
     enum:
+      - sinowealth,sh1106-i2c
       - solomon,ssd1305fb-i2c
       - solomon,ssd1306fb-i2c
       - solomon,ssd1307fb-i2c
@@ -131,6 +132,18 @@ required:
   - reg
 
 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: sinowealth,sh1106-i2c
+    then:
+      properties:
+        solomon,dclk-div:
+          default: 1
+        solomon,dclk-frq:
+          default: 5
+
   - if:
       properties:
         compatible: