- marked Mesa.keyring and mesa-11.0.0.tar.xz.sig as source in
specfile in order to make factory checkin policy happy

- Update to version 11.0.0
* Mesa 11.0 brings core Mesa support for OpenGL 4.2, RadeonSI and Nouveau NVC0
OpenGL 4.1 support (the other hardware drivers remain at OpenGL 3.3), AMDGPU
kernel driver support along with initial R9 Fury/Fiji support, EGL 1.5 support,
ongoing OpenGL ES 3.1 work, OpenCL compute image support, HEVC video decode
support for RadeonSI via VDPAU, OpenGL ES 3.0 for Freedreno, and many fixes.
+ drop U_mesa-llvm37-rename-r600-to-amdgpu.patch and U_mesa-llvm37.patch

- Update to version 10.6.7
+ add gpg verification of source package
* fdo#90751 Revert "i965: Momentarily pretend to support
ARB_texture_stencil8 for blits."
* mesa/teximage: use correct extension for accept stencil texture.