Create readme file for mobicore driver. 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. Signed-off-by: Lukas Hänel <lukas.haenel@gi-de.com> (cherry picked from commit 70c408cacd0722652f1eb85492314ada68801333) Change-Id: I008b973706091c10db9c785f1b1758022eb3e8b9 Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>