efi: Rename the base efi self-test

This function uses the same base name as all the others in this file, so
it is not easy to run just that one test. Add a _base suffix so that it
can be run on its own.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
1 file changed