btrfs-progs: inspect: add build conditionals around list-chunk

In default build there's a warning (reported by CI) that the
experimental list-chunk command and related functions are not used, so
add the condition there as well.

  In file included from cmds/inspect.c:45:
  ./cmds/commands.h:67:26: warning: 'cmd_struct_inspect_list_chunks' defined but not used [-Wunused-const-variable=]
   #define __CMD_NAME(name) cmd_struct_ ##name
			    ^~~~~~~~~~~
  ./cmds/commands.h:73:26: note: in expansion of macro '__CMD_NAME'
    const struct cmd_struct __CMD_NAME(name) =   \
			    ^~~~~~~~~~
  ./cmds/commands.h:88:2: note: in expansion of macro 'DEFINE_COMMAND'
    DEFINE_COMMAND(name, token, cmd_ ##name,   \
    ^~~~~~~~~~~~~~
  cmds/inspect.c:1115:8: note: in expansion of macro 'DEFINE_SIMPLE_COMMAND'
   static DEFINE_SIMPLE_COMMAND(inspect_list_chunks, "list-chunks");
	  ^~~~~~~~~~~~~~~~~~~~~

Signed-off-by: David Sterba <dsterba@suse.com>

Author: kdave

cmds/inspect.c

@@ -692,6 +692,8 @@ static int cmd_inspect_min_dev_size(const struct cmd_struct *cmd,
 }
 static DEFINE_SIMPLE_COMMAND(inspect_min_dev_size, "min-dev-size");
 
+#if EXPERIMENTAL
+
 static const char * const cmd_inspect_list_chunks_usage[] = {
 	"btrfs inspect-internal list-chunks [options] <path>",
 	"Show chunks (block groups) layout",
@@ -1114,6 +1116,8 @@ static int cmd_inspect_list_chunks(const struct cmd_struct *cmd,
 }
 static DEFINE_SIMPLE_COMMAND(inspect_list_chunks, "list-chunks");
 
+#endif
+
 static const char * const cmd_inspect_map_swapfile_usage[] = {
 	"btrfs inspect-internal map-swapfile <file>",
 	"Print physical offset of first block and resume offset if file is suitable as swapfile",