Load us console layout in uefi_postinstall too

...since it runs during non-English tests on aarch64.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

tests/uefi_postinstall.pm

@@ -1,6 +1,7 @@
 use base "installedtest";
 use strict;
 use testapi;
+use utils;
 
 sub run {
     my $self=shift;
@@ -8,6 +9,8 @@ sub run {
         $self->root_console(tty=>4);
     }
     assert_screen "root_console";
+    # for aarch64 non-english tests
+    console_loadkeys_us;
     # this test shows if the system is booted with efi
     assert_script_run '[ -d /sys/firmware/efi/ ]';
 }