Defines starting with `f' in 321/linux

• FRAMECOUNT_MASK 321/linux/r_drawa.s:13
• FULLY_CLIPPED_CACHED 321/linux/r_drawa.s:12
• fv_flags 321/linux/d_ifacea.h:66
• fv_reserved 321/linux/d_ifacea.h:67
• fv_shift 321/linux/d_ifacea.h:69
• fv_size 321/linux/d_ifacea.h:68
• fv_v 321/linux/d_ifacea.h:63