mm: fix DEBUG_RODATA_TEST indentation in Kconfig

Most of the DEBUG_RODATA_TEST section is indented by four spaces instead
of the customary single TAB.

Link: https://lkml.kernel.org/r/74f39b1bffc6ed802088cb3e7d17b4c82330e8b3.1764058676.git.geert@linux-m68k.org
Fixes: 2959a5f ("mm: add arch-independent testcases for RODATA")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Jinbum Park <jinb.park7@gmail.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Author: geertu

mm/Kconfig.debug

@@ -175,10 +175,10 @@ config DEBUG_PAGE_REF
 	  nil until the tracepoints are actually enabled.
 
 config DEBUG_RODATA_TEST
-    bool "Testcase for the marking rodata read-only"
-    depends on STRICT_KERNEL_RWX
+	bool "Testcase for the marking rodata read-only"
+	depends on STRICT_KERNEL_RWX
 	help
-      This option enables a testcase for the setting rodata read-only.
+	  This option enables a testcase for the setting rodata read-only.
 
 config ARCH_HAS_DEBUG_WX
 	bool