xf86-video-tga-1.2.2-bp151.3.1

- add ExcludeArch for s390 and s390x

-  Add mibstore.patch, fixes build with xorg-server 1.14

- introduce hardware supplements conditional on xorg-x11-server
  package (bnc#810333)

- Update to version 1.2.2:
  + Fix build against older X server.
  + Port to XAA-less server.
  + Port to new compat API.
  + Silence warnings by using newer xf86dgaproto.

- Use %x11_abi_videodrv_req instead of static ABI Requires.

- Split xf86-video-tga from xorg-x11-driver-video.
  Initial version: 1.2.1.