grove-lcd: import of Grove LCD I2C controller

Initial import of the Grove LCD I2C controller.  Data sheet can
be found at:
http://www.seeedstudio.com/wiki/images/0/03/JHD1214Y_YG_1.0.pdf

[DL: Updated command sequence according to datasheet.]

Change-Id: Id1b491f8dce346769dc42c41fac0ea3aabe3950a
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index d323297..ca1fa19 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -33,6 +33,8 @@
 
 source "drivers/random/Kconfig"
 
+source "drivers/grove/Kconfig"
+
 source "drivers/pci/Kconfig"
 
 source "drivers/gpio/Kconfig"