Release v1.2.9

Core
 - Release v1.2.9
 - configure.ac: fix build without dlfcn.h
 - chore: Add link to master branch on GitHub Actions
 - chore: Delete .travis.yml because of using not Travis CI but GitHub Actions
/include/Makefile.am
 - include: fix package - add bswap.h and os_compat.h to noinst_HEADERS
ALSA Control (alsactl)
 - alsactl: fix OpenBSD compilation (add include of os_compat.h)
 - Add OpenBSD support
ALSA RawMidi Utility (amidi)
 - Add OpenBSD support
 - amidi: restore space between bytes
Audio Transfer utility
 - aplay,axfer: Replace off64_t with off_t
 - axfer: fix typo in manual
alsa-info.sh
 - alsa-info.sh: increase version to 0.5.3
 - alsa-info.sh: uname - reduce execs by four, and eliminate a logic bug
 - alsa-info.sh: Update `test` '-a' and '-o' to '&&' and '||'
 - alsa-info.sh: print ctl-led list from sysfs
alsaconf
 - Add Georgian translation
alsaloop
 - alsaloop: fix loopcount condition
 - Add OpenBSD support
alsamixer
 - alsamixer: add -B,--black-background option
alsatplg (topology)
 - topology: pre-processor: fix regular expression flags
 - topology: pre-process-object: Expand definitions within strings
 - topology: pre-process-object: Remove all trailing white space
 - topology: pre-processor: support to include conf block with IncludeByKey
 - topology: nhlt: intel: add support for ssp blob ver 1.5
 - topology: plugins: nhlt: add ssp aux controls
 - topology: propagate nhlt plugin error to main program
 - topology: plugins: nhlt: fix ssp debug
 - topology: nhlt: intel: ssp: fix obvious typo for 'codec_provider'
 - topology: plugins: nhlt: fix ssp dai index
 - topology: plugins: nhlt: add dmic dai index
 - topology: plugins: fix off by 1 mem allocation error
alsaucm
 - alsaucm: fix typo in docs (can can)
 - alsaucm: add also card index for '-c' argument
aplay/arecord
 - arecord: use correct duration
 - aplay,axfer: Replace off64_t with off_t
 - aplay: Fix parsing of format with WAV_FMT_EXTENSIBLE header
bat (basic audio tester)
 - alsabat: improve error handling in bat_init()
 - bat: Add 'readcapture' option to support analyzing external audio

Signed-off-by: Jaroslav Kysela <perex@perex.cz>