xiaomi-rolex: new device (MR 1911)

Based on !1158 by @nrdnandan (5 files)
new file: device/testing/device-xiaomi-rolex/APKBUILD
new file: device/testing/device-xiaomi-rolex/deviceinfo
new file: device/testing/linux-xiaomi-rolex/APKBUILD
new file: device/testing/linux-xiaomi-rolex/config-xiaomi-rolex.aarch64
new file: firmware/firmware-xiaomi-rolex/APKBUILD

Changed deviceinfo : Width x Height was 800x600 to correct dimension -> 720x1280

modified: device/testing/device-xiaomi-rolex/APKBUILD
modified: device/testing/device-xiaomi-rolex/deviceinfo

Added directfbrc and fb.modes file. Also added SWAP file support swap_size=1024

Added Audio files and rules removed uneccessary lines in deviceinfo.

device/xiaomi-rolex: Fix linting issues

xiaomi-rolex: Linting fixes; is a handset

xiaomi-rolex: Moved firmware/ to device/testing/

xiaomi-rolex: Enable pmb:cross-native for kernel compilation
because it is the default for recent apkbuilds

xiaomi-rolex: Apply YYLOC patch to build 3.18.140 with gcc-10 (-fno-common)

xiaomi-rolex: update patch checksums in kernel APKBUILD

xiaomi-rolex: update deviceinfo checksum; replace common patch with a symlink

xiaomi-rolex: use mdss patch

xiaomi-rolex: use BGRA mdss framebuffer patch

xiaomi-rolex: mark myself as maintainer, drop contributor from apkbuilds
Refer to git commit history instead to determine contributors

xiaomi-rolex: update kernel config for multiple devpts

xiaomi-rolex: allow firmware cross-native builds, disable tracedeps per linter

[ci:skip-build]: already built successfully in CI