alpha: fix __arch_hweight32 typo
alpha: fix __arch_hweight32 typo

Typo in 1527bc8b928dd1399c3d3467dd47d9ede210978a renamed hweight32 to
__arch_weight32.

Signed-off-by: Matt Turner <789b315743a28dd066a4ba1459c35951c291d8a6@gmail.com>

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