This patch fixes the compiler errors:
CC weston_test_la-weston-test.lo
weston-test.c:34:21: fatal error: EGL/egl.h: No such file or directory
CC buffer-count-test.o
buffer-count-test.c:30:21: fatal error: EGL/egl.h: No such file or directory
On rpi, the EGL headers are not in the standard path.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>