util/chromeos: Add unzip as a dependency

unzip might not be installed by default, so it is added as a
dependency in crosfirmware script.

Change-Id: I420067b3e8ed26e6a7dccb863aae1272a3c7acbc
Signed-off-by: Mete Balci <metebalci@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31821
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

util/chromeos/crosfirmware.sh

@@ -37,6 +37,7 @@ exit_if_dependencies_are_missing() {
 	exit_if_uninstalled "debugfs" "e2fsprogs"
 	exit_if_uninstalled "parted" "parted"
 	exit_if_uninstalled "curl" "curl"
+	exit_if_uninstalled "unzip" "unzip"
 }
 
 get_inventory()