Renesas ARM64 Based SoC DT Updates for v4.9

Clean up:
* Remove unnecessary cap-mmc-highspeed property from SDHI nodes on r8a7795 SoC
* Add SoC-specific compatible property to audio-dmac nodes on r8a7795 SoC

New Board:
* Add r8a7794/h3ulcb board

Enablement:
* Add PFC and GPIO to r8a7796 SoC
* Enable DU and USB 2.0 on r8a7795/salvator-x board
* Add VTP, FCPV, FCPF and FDP1 to r8a7795 SoC
* Set maximum frequency for SDHI clocks on r8a7795 SoC
arm64: dts: r8a7796: Add GPIO device nodes

Add GPIO device nodes to the DT of the r8a7796 SoC.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
1 file changed