wine: fix alsa-related build error

The fix from 81230a5b is incomplete.
BR2_PACKAGE_ALSA_LIB_RAWMIDI is required as well. Fixes:
http://autobuild.buildroot.org/results/018/018391c5e70d33bc0b5745ad7a2a273efa9be0d7/



Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>