[ARM] start_thread fixup for nommu mode
[ARM] start_thread fixup for nommu mode

This patch supports start_thread in nommu mode which requires the
base index register.

Signed-off-by: Hyok S. Choi <200fb88b4ba90542ec4d4a656184b93856e83093@samsung.com>
Signed-off-by: Russell King <f6aa0246ff943bfa8602cdf60d40c481b38ed232@arm.linux.org.uk>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas