cmd: in do_efi_capsule_esrt use efi_get_configuration_table

Use library function efi_get_configuration_table() to find the ESRT.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
1 file changed