patches/openwrt: kernel: media: add support for Xbox One Digital Tuner

Xbox One Digital Tuner is supported at mainline Linux since Kernel 4.16. OpenWrt
19.07 is using Kernel 4.14. This patch should not be send to OpenWrt for
branch master as they are working on 5.4 kernel support for targets.

Xbox One Digital Tuner uses:
- USB interface: dib0700
Patch 0032-generic-Add-support-for-Xbox-One-Tuner.patch,
which was backported adds USB ID 045e:02d5 to be recognized
for an USB interface dib0700.

- Demodulator MN88472, which is supported in kernel 4.14, which we are
  using and higher

- Tuner TDA18250B
Patch 0031-generic-add-tuner-driver-for-tda18250.patch,
which was backported add driver for this tuner.