[cip-dev][isar-cip-core][PATCH 1/3] initramfs-crypt-hook: suppress stderr output from stopping watchdog

From: Quirin Gylstorff <[email protected]>

In case the watchdog timeout is set to 0, the function immediately
returns and the process with the watchdog pid will be stopped,
this will lead to the following error message:

```
resize2fs 1.47.2 (1-Jan-2025)
Resizing the filesystem on /dev/mapper/encrypted_userdata to 2043904 (4k) blocks.
The filesystem on /dev/mapper/encrypted_userdata is now 2043904 (4k) blocks long.
Wiped slot 0.
sh: can't kill pid 302: No such process
```

Reported-by: Stefan, Koch <[email protected]>
Signed-off-by: Quirin Gylstorff <[email protected]>
---
 recipes-initramfs/initramfs-crypt-hook/files/local-top-complete | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/recipes-initramfs/initramfs-crypt-hook/files/local-top-complete b/recipes-initramfs/initramfs-crypt-hook/files/local-top-complete
index b033597..397b315 100644
--- a/recipes-initramfs/initramfs-crypt-hook/files/local-top-complete
+++ b/recipes-initramfs/initramfs-crypt-hook/files/local-top-complete
@@ -371,5 +371,5 @@ if [ -x /usr/bin/tpm2_shutdown ]; then
 fi
 
 if [ -n "$watchdog_pid" ]; then
-	kill "$watchdog_pid"
+	kill "$watchdog_pid"  > /dev/null 2>&1
 fi
-- 
2.53.0