mplayer: add patch to fix compilation against alsa-lib 1.0.18

This adds a patch to fix compilation against alsa-lib 1.0.18. It is basically a
grab of the change from mplayer repository. It also refreshes the other patches
so they apply clean.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>