Add the missing extcon directory to maintain them.  When using
get_maintainer.pl, the result should include the correct maintainer
information.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git
 S:     Maintained
 F:     drivers/extcon/
+F:     include/linux/extcon/
+F:     include/linux/extcon.h
 F:     Documentation/extcon/
+F:     Documentation/devicetree/bindings/extcon/
 
 EXYNOS DP DRIVER
 M:     Jingoo Han <jingoohan1@gmail.com>