x86: Fix compile error with CONFIG_AS_CFI=n

/* Due to the structure of pre-exisiting code, don't use assembler line

   comment character # to ignore the arguments. Instead, use a dummy macro. */

.macro ignore a=0, b=0, c=0, d=0

.macro cfi_ignore a=0, b=0, c=0, d=0

.endm

#define CFI_STARTPROC	ignore

#define CFI_ENDPROC	ignore

#define CFI_DEF_CFA	ignore

#define CFI_DEF_CFA_REGISTER	ignore

#define CFI_DEF_CFA_OFFSET	ignore

#define CFI_ADJUST_CFA_OFFSET	ignore

#define CFI_OFFSET	ignore

#define CFI_REL_OFFSET	ignore

#define CFI_REGISTER	ignore

#define CFI_RESTORE	ignore

#define CFI_REMEMBER_STATE ignore

#define CFI_RESTORE_STATE ignore

#define CFI_UNDEFINED ignore

#define CFI_SIGNAL_FRAME ignore

#define CFI_STARTPROC	cfi_ignore

#define CFI_ENDPROC	cfi_ignore

#define CFI_DEF_CFA	cfi_ignore

#define CFI_DEF_CFA_REGISTER	cfi_ignore

#define CFI_DEF_CFA_OFFSET	cfi_ignore

#define CFI_ADJUST_CFA_OFFSET	cfi_ignore

#define CFI_OFFSET	cfi_ignore

#define CFI_REL_OFFSET	cfi_ignore

#define CFI_REGISTER	cfi_ignore

#define CFI_RESTORE	cfi_ignore

#define CFI_REMEMBER_STATE cfi_ignore

#define CFI_RESTORE_STATE cfi_ignore

#define CFI_UNDEFINED cfi_ignore

#define CFI_SIGNAL_FRAME cfi_ignore

#endif