iwinfo: improve ABI version handling and bump to git HEAD

iwinfo: improve ABI version handling and bump to git HEAD

 - Encode ABI version in compiled shared object file
 - Only ship versioned shared library

 a17f561 iwinfo: detect QCA IPQ4019 WiSoC from FDT
 ea28dfb iwinfo: export ht and vht operation in scan results
 4e22953 iwinfo: export center_chan info for local wifi
 74d13fb cli: account for additional digit for frequencies above 10GHz
 8bfd8d8 iwinfo: add support for GCMP cipher
 618c1e8 iwinfo: add hardware description for QCA MIPS WiSoCs
 0702f32 iwinfo: improve center channel handling
 51c1336 iwinfo: set center chan unsupported for not-nl80211 driver
 23d2722 build: add ability to specify shared object version

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>