microos/image_checks: Expect unpartitioned 2048 sectors at disk start

For Leap Micro 5.4+ aarch64 builds, there is an 1M unpartitioned space that
needs to be accounted for.

Signed-off-by: Ricardo B. Marliere <[email protected]>

tests/microos/image_checks.pm

@@ -10,7 +10,7 @@ use base "consoletest";
 use strict;
 use warnings;
 use testapi;
-use version_utils qw(is_microos is_sle_micro is_jeos);
+use version_utils qw(is_microos is_sle_micro is_jeos is_leap_micro);
 use Utils::Architectures qw(is_aarch64);
 
 sub run {
@@ -42,6 +42,9 @@ sub run {
         $left_sectors = 1792;
         record_soft_failure "bsc#1220722: no unpartitioned space left on aarch64";
     }
+    if (is_leap_micro("5.4+") && is_aarch64) {
+        $left_sectors = 2048;
+    }
 
     validate_script_output("sfdisk --list-free /dev/$disk", qr/Unpartitioned space .* $left_sectors sectors/);