fallback: Use EFI_ERROR() instead of comparing to EFI_SUCCESS everywhere.
fallback: Use EFI_ERROR() instead of comparing to EFI_SUCCESS everywhere.

Also consistently name our status variable "efi_status" unless there's a
good reason not to, such as already having another one of those.

Signed-off-by: Peter Jones <2e0a021e603479ff81838c00c3b770daca4e0214@redhat.com>

rhinstaller/shim,rhinstaller/shim,rhinstaller/shim