dt-bindings: Add vendor-prefix for Wexler

This patch adds vendor-prefix for Wexler.

WEXLER trademark owned by AVIRSA Electronics, a member of the
diversified holding AVIRSA.
Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -203,6 +203,7 @@ variscite	Variscite Ltd.
 via	VIA Technologies, Inc.
 virtio	Virtual I/O Device Specification, developed by the OASIS consortium
 voipac	Voipac Technologies s.r.o.
+wexler	Wexler
 winbond Winbond Electronics corp.
 wlf	Wolfson Microelectronics
 wm	Wondermedia Technologies, Inc.