ARM: dts: Add vendor prefix for Voipac Technologies s.r.o.

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -88,6 +88,7 @@ toshiba	Toshiba Corporation
 toumaz	Toumaz
 v3	V3 Semiconductor
 via	VIA Technologies, Inc.
+voipac	Voipac Technologies s.r.o.
 winbond Winbond Electronics corp.
 wlf	Wolfson Microelectronics
 wm	Wondermedia Technologies, Inc.