intel_scu_ipc: Length fix

Commands with data must set the length in the message.

Signed-off-by: Alan Cox <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/platform/x86/intel_scu_ipc.c

···
 	for (i = 0; i < inlen; i++)
 		ipc_data_writel(*in++, 4 * i);
 
-	ipc_command(cmd << 12 | sub);
+	ipc_command((cmd << 12) | sub | (inlen << 18));
 	err = busy_loop();
 
 	for (i = 0; i < outlen; i++)