ARM: shmobile: Add manufacturer for KZM boards

KZM-A9-Dual and KZM-A9-GT are manufactured by Kyoto Microcomputer Co.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

Documentation/devicetree/bindings/arm/shmobile.txt

@@ -53,11 +53,11 @@ Boards:
     compatible = "renesas,henninger", "renesas,r8a7791"
   - Koelsch (RTP0RC7791SEB00010S)
     compatible = "renesas,koelsch", "renesas,r8a7791"
-  - KZM9D
+  - Kyoto Microcomputer Co. KZM-A9-Dual
     compatible = "renesas,kzm9d", "renesas,emev2"
-  - KZM-A9-GT
+  - Kyoto Microcomputer Co. KZM-A9-GT
     compatible = "renesas,kzm9g", "renesas,sh73a0"
-  - KZM-A9-GT - Reference Device Tree Implementation
+  - Kyoto Microcomputer Co. KZM-A9-GT - Reference Device Tree Implementation
     compatible = "renesas,kzm9g-reference", "renesas,sh73a0"
   - Lager (RTP0RC7790SEB00010S)
     compatible = "renesas,lager", "renesas,r8a7790"