Add enum fields for NTP_SYNC_FAILED/ENABLE_NTP (#282)

Add suggestion and issue fields for home-assistant/supervisor#6625.

Author: sairon

aiohasupervisor/models/resolution.py

@@ -21,6 +21,7 @@ class SuggestionType(StrEnum):
     CLEAR_FULL_BACKUP = "clear_full_backup"
     CREATE_FULL_BACKUP = "create_full_backup"
     DISABLE_BOOT = "disable_boot"
+    ENABLE_NTP = "enable_ntp"
     EXECUTE_REBOOT = "execute_reboot"
     EXECUTE_REBUILD = "execute_rebuild"
     EXECUTE_RELOAD = "execute_reload"
@@ -66,6 +67,7 @@ class IssueType(StrEnum):
     MOUNT_FAILED = "mount_failed"
     MULTIPLE_DATA_DISKS = "multiple_data_disks"
     NO_CURRENT_BACKUP = "no_current_backup"
+    NTP_SYNC_FAILED = "ntp_sync_failed"
     PWNED = "pwned"
     REBOOT_REQUIRED = "reboot_required"
     SECURITY = "security"