of: Add vendor prefix for JEDEC Solid State Technology Association

Add the "jedec" vendor prefix for the "JEDEC Solid State Technology
Association" (formerly known as the "Joint Electron Device Engineering
Council"), which is already in use in several bindings.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -112,6 +112,7 @@ intel	Intel Corporation
 intercontrol	Inter Control Group
 isee	ISEE 2007 S.L.
 isil	Intersil
+jedec	JEDEC Solid State Technology Association
 karo	Ka-Ro electronics GmbH
 keymile	Keymile GmbH
 kinetic Kinetic Technologies