MAINTAINERS: add entry for KUnit the unit testing framework

Added myself as maintainer of KUnit, the Linux kernel's unit testing
framework.

Change-Id: I77eaebb94e6dc82798bbc97aad520b86ea86b1c9
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index b2f710e..3e3aaf8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7988,6 +7988,20 @@
 F:	tools/testing/selftests/
 F:	Documentation/dev-tools/kselftest*
 
+KERNEL UNIT TESTING FRAMEWORK (KUnit)
+M:	Brendan Higgins <brendanhiggins@google.com>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	Documentation/test/
+F:	arch/um/include/asm/io-mock-shared.h
+F:	arch/um/include/asm/io-mock.h
+F:	arch/um/kernel/io-mock.c
+F:	drivers/base/platform-mock.c
+F:	include/linux/platform_device_mock.h
+F:	include/test/
+F:	test/
+F:	tools/testing/kunit/
+
 KERNEL USERMODE HELPER
 M:	"Luis R. Rodriguez" <mcgrof@kernel.org>
 L:	linux-kernel@vger.kernel.org