x11-drivers/xf86-video-intel: Update snapshot

Update the snapshot of x11-driver/xf86-video-intel

• Fix build with -fno-common
• Fix MIT-SHM detection
• Drop SNA/UXA options in favor of xorg.conf(5)
• Add hyphen to output names for consistency with modesetting(4x)
• Add UDEV and XVMC options
• Add "make test" support
• Drop unused dependencies
• Switch to upstream versioning scheme
• Document all patches
• Simplify and deprecate _WITH_GETLINE
• Fix most style warnings

PR: 236003
Submitted by: jbiech
MFH: 2020Q3