test: boot: Use a consistent name for the script bootmeth

In the bootflow tests the script bootmeth is bound with the name
bootmeth_script whereas the others have a name without the bootmeth_
prefix. Adjust it to be the same.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
1 file changed