iwlwifi: activate status ready timeout only for run time ucode

This patch makes driver state timeout checks on ucode alive response
only if run time ucode have been loaded.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>