[PATCH] i386: Add X86_FEATURE_RDTSCP

#define X86_FEATURE_MP		(1*32+19) /* MP Capable. */

#define X86_FEATURE_NX		(1*32+20) /* Execute Disable */

#define X86_FEATURE_MMXEXT	(1*32+22) /* AMD MMX extensions */

#define X86_FEATURE_RDTSCP	(1*32+27) /* RDTSCP */

#define X86_FEATURE_LM		(1*32+29) /* Long Mode (x86-64) */

#define X86_FEATURE_3DNOWEXT	(1*32+30) /* AMD 3DNow! extensions */

#define X86_FEATURE_3DNOW	(1*32+31) /* 3DNow! */