mobicore: Add mobicore driver.

Mobicore is an operating system being shipped along with
Trustzone BSP for msm chipsets. Mobicore consists of
several components in the secure world(Trustzone) and
non-secure world(linux kernel, Android user space).

The Mobicore driver communicates with the Mobicore kernel
that exists in the Trustzone.

Change-Id: Ie5b9f05f0bd6c47e55221af983498d08cbc519ab
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 58bf45d..aaa2086 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -132,4 +132,6 @@
 
 source "drivers/clocksource/Kconfig"
 
+source "drivers/gud/Kconfig"
+
 endmenu