- move xorg drivers to suggests rel 2

- move xorg drivers to suggests rel 2

mesa gl may want dri drivers regardless of xorg driver, ex. running
driver amdgpu without and with radeonsi_dri.so:

libGL error: MESA-LOADER: failed to open radeonsi: /usr/lib64/xorg/modules/dri/radeonsi_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib64/xorg/modules/dri, suffix _dri)
libGL error: failed to load driver: radeonsi
GL_RENDERER: llvmpipe (LLVM 12.0.1, 256 bits)

with radeonsi_dri.so present:

GL_RENDERER: Radeon RX 580 Series (POLARIS10, DRM 3.42.0, 5.14.15-1, LLVM 12.0.1)