wifi: mwifiex: remove mwifiex_sta_init_cmd() last argument

The init argument from mwifiex_sta_init_cmd() is no longer used. Drop
it.

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://patch.msgid.link/20250423-mwifiex-drop-asynchronous-init-v2-4-1bb951073a06@pengutronix.de


Signed-off-by: Johannes Berg <johannes.berg@intel.com>