netlink: specs: add dump-strict flag for dont-validate property

Allow user to specify GENL_DONT_VALIDATE_DUMP_STRICT flag for validation
and add this flag to netlink spec schema.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230803111340.1074067-2-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/netlink/genetlink-c.yaml

@@ -274,7 +274,7 @@ properties:
               description: Kernel attribute validation flags.
               type: array
               items:
-                enum: [ strict, dump ]
+                enum: [ strict, dump, dump-strict ]
             do: &subop-type
               description: Main command handler.
               type: object

Documentation/netlink/genetlink-legacy.yaml

@@ -321,7 +321,7 @@ properties:
               description: Kernel attribute validation flags.
               type: array
               items:
-                enum: [ strict, dump ]
+                enum: [ strict, dump, dump-strict ]
             # Start genetlink-legacy
             fixed-header: *fixed-header
             # End genetlink-legacy

Documentation/netlink/genetlink.yaml

@@ -243,7 +243,7 @@ properties:
               description: Kernel attribute validation flags.
               type: array
               items:
-                enum: [ strict, dump ]
+                enum: [ strict, dump, dump-strict ]
             do: &subop-type
               description: Main command handler.
               type: object