Merge branch 'x86/unify-lib' into x86/core

arch/x86/Kconfig.cpu

arch/x86/ia32/ia32entry.S

arch/x86/kernel/asm-offsets_64.c

arch/x86/kernel/entry_64.S

arch/x86/kernel/tsc.c

arch/x86/lib/Makefile

arch/x86/lib/copy_user_64.S

arch/x86/lib/delay.c

arch/x86/lib/delay_64.c

arch/x86/lib/getuser.S

arch/x86/lib/getuser_32.S

arch/x86/lib/putuser.S

arch/x86/lib/putuser_64.S

include/asm-x86/asm.h

include/asm-x86/delay.h

include/asm-x86/uaccess.h

include/asm-x86/uaccess_32.h

include/asm-x86/uaccess_64.h