[U-Boot] [U-Boot, v16, 2/4] efi: Split out test init/uninit into functions

[Alexander Graf]

> The functions in bootefi are very long because they mix high-level code
> and control with the low-level implementation. To help with this, create
> functions which handle preparing for running the test and cleaning up
> afterwards.
> 
> Also shorten the awfully long variable names here.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

Thanks, applied to efi-next

Alex