package/dvdauthor: bump version to 0.7.2

package/dvdauthor: bump version to 0.7.2

Changed _SITE to https, added upstream hashes.

Removed patch applied upstream:
https://github.com/ldo/dvdauthor/commit/176172d5dcba4d6e2704a1a2cc48c9e687761996

Also remove autoreconf-related code, basically reverting the original
commit:
https://git.buildroot.net/buildroot/commit/package/dvdauthor?id=1cac78fbb044279f1854b1c7c59e94f03fb061f1

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>