iwlwifi: mvm: remove upper limit for error log base pointer

Newer NIC have different memory layout in their SRAM,
so change the checks in iwl_mvm_dump_nic_error_log
accordingly.

Signed-off-by: Ariej Marjieh <ariej.marjieh@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>