wifi: iwlwifi: fix cmd length when sending WOWLAN_TSC_RSC_PARAM

wifi: iwlwifi: fix cmd length when sending WOWLAN_TSC_RSC_PARAM

In iwl_mvm_wowlan_config_rsc_tsc() when calling iwl_mvm_send_cmd_pdu()
we are accidentally passing the size of a pointer rather than the size
of the object pointed by it.

Fix the expression in order to pass the approriate object length.

Fixes: 493681d9f95b ("wifi: iwlwifi: remove support of version 4 of iwl_wowlan_rsc_tsc_params_cmd")
Address-Coverity-ID: 1647627 ("Incorrect expression  (SIZEOF_MISMATCH)")
Signed-off-by: Antonio Quartulli <antonio@mandelbit.com>
Link: https://patch.msgid.link/20250716201911.700-1-antonio@mandelbit.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>