net: wwan: iosm: correct open parenthesis alignment

Fix checkpatch warning in iosm_ipc_mmio.c
- Alignment should match open parenthesis
Signed-off-by: NM Chetan Kumar <m.chetan.kumar@linux.intel.com>
Reviewed-by: NSergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>