mobicore: initial import of kernel driver

MobiCore kernel driver is an interface to the mobicore TEE
This version uses under_score coding style only.

MobiCore is an operating system being shipped with TZBSP
on 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
TrustZone.

Change-Id: Idbe106e9e2de21d91d3305666abebeca161827a6
Signed-off-by: Lukas Hänel <lukas.haenel@gi-de.com>
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>