IB/uverbs: Use correct alt_pkey_index in modify QP
IB/uverbs: Use correct alt_pkey_index in modify QP

The old code incorrectly used the primary P_Key index as the alternate
index too.

Signed-off-by: Ami Perlmutter <7a2a78be505a52e4c6b806aaff9bcca3aea9ecc4@mellanox.co.il>
Signed-off-by: Roland Dreier <91e9b5f7ca0bb6300133ed378670d64af90dde66@cisco.com>

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