tree ac22a90dccc226a75dcc8d4878a5366327edd4e6
parent e7c3cd6b67d87383fa48b41c1b4037b75ceab597
author Heinrich Schuchardt <xypron.glpk@gmx.de> 1557068106 +0200
committer Heinrich Schuchardt <xypron.glpk@gmx.de> 1557256204 +0200

efi_loader: LoadImage() check parent image

If the parent image handle does not refer to a loaded image return
EFI_INVALID_PARAMETER.
(UEFI SCT II 2017: 3.4.1 LoadImage() - 5.1.4.1.1)

Mark our root node as a loaded image to avoid an error when using it as
parent image.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>