efi_loader: return the correct error in efi_bootmgr_release_uridp()

There's currently a chance for this function to overwrite an error if
one occurred and the subsequent call to
efi_uninstall_multiple_protocol_interfaces() succedded. Although this
is an EFI event and we can't do much let's at least set and return
the correct error

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
1 file changed