Defines starting with `f' in osfmk/i386

• FALIGN osfmk/i386/asm.h:89
• FIXUP_PC_AFTER_BREAK osfmk/i386/db_machdep.h:81
• FLIPC_BTOP osfmk/i386/flipc_page.h:35
• FLIPC_PAGERND_FN osfmk/i386/flipc_page.h:34
• FLIPC_PAGESIZE osfmk/i386/flipc_page.h:33
• FPE_CS osfmk/i386/seg.h:171
• FRAME osfmk/i386/asm.h:75