iwlwifi: mvm: avoid searching unnecessary columns
iwlwifi: mvm: avoid searching unnecessary columns

Don't search columns which are unlikely to succeed as previous
columns searched with less aggressive modulation failed.

Cc: <4fbacc2fa0ffdbb11bf1ad6925b886ebd08dd15f@vger.kernel.org> [3.14]
Signed-off-by: Eyal Shapira <3d1217e93713be052f2e13e2fde5a229ae1c74e3@intel.com>
Signed-off-by: Emmanuel Grumbach <643a80aaf16a8332d6a70921c14d4bb265446494@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs