backends/drm: test crtc+connector combinations with hardware rotation

This should enable KWin to use hardware rotation in more situations. As
a fallback all hardware rotation is disabled and the test is done again
2 jobs for !1678 with work/transformations in 12 minutes and 41 seconds (queued for 9 seconds)
detached
Status Name Job ID Coverage
  Build
passed freebsd_qt515 #166292
FreeBSD

00:07:32

passed suse_tumbleweed_qt515 #166291
Linux

00:12:40