package/linknx: bump version to 0.0.1.33

package/linknx: bump version to 0.0.1.33

Switch _SITE to github:
https://github.com/linknx/linknx/commit/80264a26318820e5864196aefe3af093071b90b8

Mysql support was fixed with
https://github.com/linknx/linknx/commit/83d1d88dc4cec422e13e0c2baa34a828a3f67270
there 0001-fix-static-build-with-mysql.patch can be removed.

Build-tested using this defconfig
http://autobuild.buildroot.net/results/2df/2dfcbd30079d13997de37e2d1c4643653e200be6
mentioned in
https://git.buildroot.net/buildroot/commit/package/linknx?id=f35f54585f9e63400bdbd9c9ba2b9fd67be538ea

After removing the mysql patch autoreconf is not needed anymore,
therefore we can remove the libcurl dependency which was only added to
fix autoreconf:
https://git.buildroot.net/buildroot/commit/package/linknx?id=e1c9a2349006e657e76dff35706a774376921fb7

LINKNX_CREATE_MISSING_FILES is also not needed anymore after commit
https://github.com/linknx/linknx/commit/ef04c6d12846800fa1554d2fe31813dd09c5f29b

Renumbered remaining patch.

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