MGS-4010 [#imx-919] Vulkan test met gpu hang on wayland

MGS-4010 [#imx-919] Vulkan test met gpu hang on wayland

These case will generate a huge command object, which was divided into 33 Command Buffers to commit.
It will introduce a context switch within a command object. So add a mutex to avoid the Context switch.

Date: 23th Otc,2018
Signed-off-by Ya Zhou <ya.zhou@nxp.com>

Signed-off-by: Arulpandiyan Vadivel <arulpandiyan_vadivel@mentor.com>