rockchip: Add MAINTAINER entry for chromebook_speedy

This adds a MAINTAINER entry for chromebook_speedy.

Without this, we get the following warnings from the maintainers
check:
    WARNING: no status info for 'chromebook_minnie'
    WARNING: no maintainers for 'chromebook_minnie'

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/board/google/veyron/MAINTAINERS b/board/google/veyron/MAINTAINERS
index 246a3e3..d979780 100644
--- a/board/google/veyron/MAINTAINERS
+++ b/board/google/veyron/MAINTAINERS
@@ -18,3 +18,10 @@
 F:	board/google/veyron/
 F:	include/configs/veyron.h
 F:	configs/chromebook_minnie_defconfig
+
+CHROMEBOOK SPEEDY BOARD
+M:	Simon Glass <sjg@chromium.org>
+S:	Maintained
+F:	board/google/veyron/
+F:	include/configs/veyron.h
+F:	configs/chromebook_speedy_defconfig