GLFW has the ability to use a wayland backend. This patch adds a config
for it, but does not enable it by default because it has a dependency on
extra-cmake-modules which is provided (most commonly) by meta-qt5-extra.
Signed-off-by: Randolph Sapp <rs@ti.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>