ilo: fix some state pointer commands on Gen8
ilo: fix some state pointer commands on Gen8

3DSTATE_CC_STATE_POINTERS seems to be ignored when bit 0 of DW1 is not set.
Follow i965 and set the bit for 3DSTATE_CC_STATE_POINTERS and
3DSTATE_BLEND_STATE_POINTERS.  Add gen checks for all state pointer commands.

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler