package/x11r7/xdriver_xf86-video-trident: bump version to 1.3.7, add hash

Removed patches committed upstream:
http://lists.x.org/archives/xorg-announce/2015-March/002558.html



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