kbuild: reenable section mismatch analysis

This was disabled in commit

	e5f95c8b (kbuild: print only total number of section mismatces found)

because there were too many warnings.  Now we're down to a reasonable
number again, so we start scaring people with the details.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Acked-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NMichal Marek <mmarek@suse.cz>

lib/Kconfig.debug

@@ -102,11 +102,7 @@ config HEADERS_CHECK
 
 config DEBUG_SECTION_MISMATCH
 	bool "Enable full Section mismatch analysis"
-	depends on UNDEFINED || (BLACKFIN)
 	default y
-	# This option is on purpose disabled for now.
-	# It will be enabled when we are down to a reasonable number
-	# of section mismatch warnings (< 10 for an allyesconfig build)
 	help
 	  The section mismatch analysis checks if there are illegal
 	  references from one section to another section.