MIPS: mark ginvt() as __always_inline

To meet the 'i' (immediate) constraint for the asm operands,
this function must be always inlined.

Signed-off-by: Masahiro Yamada <[e-mail]>
Signed-off-by: Paul Burton <[e-mail]>
Cc: [e-mail]
Cc: Ralf Baechle <[e-mail]>
Cc: James Hogan <[e-mail]>
Cc: [e-mail]

arch/mips/include/asm/ginvt.h

···
 # define _ASM_SET_GINV
 #endif
 
-static inline void ginvt(unsigned long addr, enum ginvt_type type)
+static __always_inline void ginvt(unsigned long addr, enum ginvt_type type)
 {
 	asm volatile(
 		".set	push\n"