package/libdvdread: bump version to 5.0.3

package/libdvdread: bump version to 5.0.3

Removed 0001-fix-os2-support.patch, applied upstream:
https://code.videolan.org/videolan/libdvdread/commit/75f8601ee3b19d8914528860f7e1d2906df4a411

Removed autoreconf, a configure script is now part of the upstream
tarball.

The script dvdread-config was removed:
https://code.videolan.org/videolan/libdvdread/commit/9991d1720b824902628573abce89916700933c38

Changed LIBDVDREAD_SITE according to the news post dating 13 Feb 2014
from http://dvdnav.mplayerhq.hu/

Enabled static build, tested using this defconfig:
http://autobuild.buildroot.net/toolchains/configs/br-arm-full-static.config

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>