devicetree: bindings: Document murata vendor prefix

Add Murata Manufacturing Co., Ltd. to the list of device tree
vendor prefixes.

Murata manufactures NTC (Negative Temperature Coefficient) based
Thermistors for small scale applications like Mobiles and PDAs.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -83,6 +83,7 @@ mosaixtech	Mosaix Technologies, Inc.
 moxa	Moxa
 mpl	MPL AG
 mundoreader	Mundo Reader S.L.
+murata	Murata Manufacturing Co., Ltd.
 mxicy	Macronix International Co., Ltd.
 national	National Semiconductor
 neonode		Neonode Inc.