Prepare for better device categorization by moving everything to testing
subdir first.
[skip-ci]: chicken-egg problem: passing pmaports CI depends on pmbootstrap MR
depends on this MR
Related: postmarketos#16
* fix patch file names and reorder them properly
* add patch to fix framebuffer memory allocation
* add patch to fix compile warning for iptables plugin xt_connbytes
* add patch to properly assign MAC address for USB RNDIS
* add backport patch from upstream about O_PATH file descriptors
[ci:skip-build]: already went through successfully in CI