treewide: fix indentation and whitespace in Kconfig files

treewide: fix indentation and whitespace in Kconfig files

Clean up inconsistent indentation (mixing tabs and spaces) and remove
extraneous whitespace in several Kconfig files across the tree.  This is a
purely cosmetic change to improve readability.

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:

$ sed -e 's/^        /\t/' -i */Kconfig

Link: https://lore.kernel.org/20260407053945.14116-1-linux.amoon@gmail.com
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>			[fs]
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>	[mm]
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>		[mm]
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>