v4l: xilinx: Add a scaler driver (SCALER) driver

Add scaler(SCALER) driver. The SCALER resamples the incoming video
data stream using a separable polyphase filters.

Signed-off-by: Hyun Kwon <hyunk@xilinx.com>
media: xilinx: ccm: Use xvip helper functions

Use xvip helper functions.

This patch will be squashed to the initial one.
media: xilinx: cfa: Use xvip helper functions

Use xvip helper functions.

This patch will be squashed into the initial one.
media: xilinx: cresample: Use xvip helper functions

Use xvip helper functions.

This patch will be squahsed into the initial one.
media: xilinx: enhance: Use xvip helper functions

Use xvip helper functions.

This patch will be squahsed into the initial one.
media: xilinx: gamma: Use xvip helper functions

Use xvip helper functions.

This patch will be squahsed into the initial one.
media: xilinx: rgb2yuv: Use xvip helper functions

Use xvip helper functions.

This patch will be squahsed into the initial one.
media: xilinx: spc: Use xvip helper functions

Use xvip helper functions.

This patch will be squahsed into the initial one.
media: xilinx: stats: Use xvip helper functions

Use xvip helper functions.

This patch will be squahsed into the initial one.
media: xilinx: scaler: Use xvip helper functions

Use xvip helper functions.

This patch will be squahsed into the initial one.
arm: config: xilinx zynq: Add v4l configs

Add v4l IPs configs
arm: dts: Add zc702 vdf dts

Add zc702 vdf dts.
arm: dts: Add dts for zc706 vdf

Add dts for zc706 vdf