of: Add vendor prefix for Truly Semiconductors Limited

Signed-off-by: NLiu Ying <Ying.Liu@freescale.com>
Signed-off-by: NRob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -168,6 +168,7 @@ tlm	Trusted Logic Mobility
 toradex	Toradex AG
 toshiba	Toshiba Corporation
 toumaz	Toumaz
+truly	Truly Semiconductors Limited
 usi	Universal Scientific Industrial Co., Ltd.
 v3	V3 Semiconductor
 variscite	Variscite Ltd.