[wayland-wsegl] Add some knowledge to README
[wayland-wsegl] Add some knowledge to README

locusf/ti-omap3-sgx-wayland-wsegl,nemomobile/ti-omap3-sgx-wayland-wsegl,locusf/ti-omap3-sgx-wayland-wsegl,nemomobile/ti-omap3-sgx-wayland-wsegl