NVIDIA: SAUCE: kernel/script: depmod: Do not use exec for depmod call

BugLink: https://bugs.launchpad.net/bugs/2080908

Directly call the depmod instead of using the exec for
executing this. Using the exec is exiting the script.

http://nvbugs/4403549

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Noah Wager <noah.wager@canonical.com>

scripts/depmod.sh

@@ -37,7 +37,7 @@ do
 		config_file_name=$(basename -- "$config_file")
 		flavor=$(echo ${config_file_name} | cut -d'-' -f3)
 
-		exec "$DEPMOD" "$@" "$KERNELRELEASE"  -C "$config_file"
+		"$DEPMOD" "$@" "$KERNELRELEASE"  -C "$config_file"
 
 		exit_status=$?
 		if [ "$exit_status" -ne 0 ]; then