linux: Fix a recent regression of ACPI S1 suspending issue

Let main thread do the io_notify when the current run_mode is Running.
The previous implementation is to check if the last run_mode is suspending or
not. As here the checking object is the current run_mode, so should use
Running instead of Suspending.

BUG=chromium:1149266
TEST=boot a VM and do a suspend/resume test through both ways of the socket
and "#echo standby > /sys/power/state". VM can be suspended and resumed
back.

Change-Id: Iae187a18c707e5da0cfd1e241130a0981fb902ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2534253
Reviewed-by: Keiichi Watanabe <[email protected]>
Reviewed-by: Dylan Reid <[email protected]>
Reviewed-by: Tomasz Jeznach <[email protected]>
Reviewed-by: Daniel Verkamp <[email protected]>
Tested-by: kokoro <[email protected]>
Commit-Queue: Chuanxiao Dong <[email protected]>
Commit-Queue: Dylan Reid <[email protected]>

Author: Chuanxiao Dong

src/linux.rs

@@ -2614,7 +2614,7 @@ fn run_control<V: VmArch + 'static, Vcpu: VcpuArch + 'static, I: IrqChipArch + '
                                                 break 'wait;
                                             }
                                             other => {
-                                                if other == VmRunMode::Suspending {
+                                                if other == VmRunMode::Running {
                                                     linux.io_bus.notify_resume();
                                                 }
                                                 for (handle, channel) in &vcpu_handles {