gallium: Add NV_fill_rectangle to pipe state
gallium: Add NV_fill_rectangle to pipe state

Signed-off-by: Lyude <lyude@redhat.com>

Changes since v1:
- Fix accidental widening of bitfields

Reviewed-by: Ilia Mirkin <bcbbb7aa705ec3a5fc5824c01a845186c3d62fca@alum.mit.edu>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler