Fix non conforming partition table

This change removes the legacy_boot flag from the EFI system partition.
We already have a BIOS boot partition which should offer compatibility with
legacy bios systems.

Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>

Author: gabriel-samfira

build_library/disk_layout.json

@@ -16,7 +16,7 @@
         "blocks":"262144",
         "fs_type":"vfat",
         "mount":"/boot",
-        "features": ["hybrid"]
+        "features": []
       },
       "2":{
         "label":"BIOS-BOOT",

changelog/bugfixes/2025-02-14-fix-efi-partition-flags.md

@@ -0,0 +1 @@
+- Fix non-conforming GPT partition table ([flatcar/Flatcar#1651](https://github.com/flatcar/Flatcar/issues/1651)