dt-bindings: gpmc: Correct location of generic gpmc binding

The binding bus/ti-gpmc.txt has been moved to
memory-controllers/omap-gpmc.txt.  Update all references to this in
order to make reading and understanding a given binding easier.

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc:Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

Documentation/devicetree/bindings/mtd/gpmc-nand.txt

@@ -5,7 +5,7 @@ the GPMC controller with a name of "nand".
 
 All timing relevant properties as well as generic gpmc child properties are
 explained in a separate documents - please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 For NAND specific properties such as ECC modes or bus width, please refer to
 Documentation/devicetree/bindings/mtd/nand.txt

Documentation/devicetree/bindings/mtd/gpmc-nor.txt

@@ -5,7 +5,7 @@ child nodes of the GPMC controller with a name of "nor".
 
 All timing relevant properties as well as generic GPMC child properties are
 explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Required properties:
 - bank-width: 		Width of NOR flash in bytes. GPMC supports 8-bit and
@@ -28,7 +28,7 @@ Required properties:
 
 Optional properties:
 - gpmc,XXX		Additional GPMC timings and settings parameters. See
-			Documentation/devicetree/bindings/bus/ti-gpmc.txt
+			Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Optional properties for partition table parsing:
 - #address-cells: should be set to 1

Documentation/devicetree/bindings/mtd/gpmc-onenand.txt

@@ -5,7 +5,7 @@ the GPMC controller with a name of "onenand".
 
 All timing relevant properties as well as generic gpmc child properties are
 explained in a separate documents - please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Required properties:
 

Documentation/devicetree/bindings/net/gpmc-eth.txt

@@ -9,7 +9,7 @@ the GPMC controller with an "ethernet" name.
 
 All timing relevant properties as well as generic GPMC child properties are
 explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 For the properties relevant to the ethernet controller connected to the GPMC
 refer to the binding documentation of the device. For example, the documentation
@@ -43,7 +43,7 @@ Required properties:
 
 Optional properties:
 - gpmc,XXX		Additional GPMC timings and settings parameters. See
-			Documentation/devicetree/bindings/bus/ti-gpmc.txt
+			Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Example: