libegt: bump to 1.4
libegt: bump to 1.4

Signed-off-by: Cyrille Pitchen <e50fad4ce891c9ba2f33288a3659adde668ff62d@microchip.com>

linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel,linux4sam/meta-atmel