Input: imx_sc_key - correct SCU message structure to avoid stack corruption

The SCU message's data field used for receiving response data from SCU
should be 32-bit width, as SCU will send back 32-bit width data.

This solves kernel panic when CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG is
enabled.

[ 1.950768] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted
[ 1.980607] Workqueue: events imx_sc_check_for_events
[ 1.985657] Call trace:
[ 1.988104] dump_backtrace+0x0/0x140
[ 1.991768] show_stack+0x14/0x20
[ 1.995090] dump_stack+0xb4/0xf8
[ 1.998407] panic+0x158/0x324
[ 2.001463] print_tainted+0x0/0xa8
[ 2.004950] imx_sc_check_for_events+0x18c/0x190
[ 2.009569] process_one_work+0x198/0x320
[ 2.013579] worker_thread+0x48/0x420
[ 2.017252] kthread+0xf0/0x120
[ 2.020394] ret_from_fork+0x10/0x18
[ 2.023977] SMP: stopping secondary CPUs
[ 2.027901] Kernel Offset: disabled
[ 2.031391] CPU features: 0x0002,2100600c
[ 2.035401] Memory Limit: none

Signed-off-by: Anson Huang <[e-mail]>
Fixes: 688f1dfb69b4 ("Input: keyboard - imx_sc: Add i.MX system controller key support")
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/keyboard/imx_sc_key.c

···
 
 struct imx_sc_msg_key {
 	struct imx_sc_rpc_msg hdr;
-	u8 state;
+	u32 state;
 };
 
 static int imx_sc_key_notify(struct notifier_block *nb,