OE configures cairo to disable EGL support, however fbida expects cairo with egl support
this patch therefore makes it possible to set HAVE_CAIRO_GL via recipe

Upstream-Status: Inappropriate [OE-Specific]
Signed-off-by: Khem Raj <raj.khem@gmail.com>

--- a/GNUmakefile
+++ b/GNUmakefile
@@ -67,7 +67,7 @@ define make-config
 LIB		:= $(LIB)
 RESDIR		:= $(call ac_resdir)
 HAVE_LINUX_FB_H	:= $(call ac_header,linux/fb.h)
-HAVE_CAIRO_GL	:= $(call ac_pkg_config,cairo-gl)
+HAVE_CAIRO_GL	?= $(call ac_pkg_config,cairo-gl)
 HAVE_LIBPCD	:= $(call ac_lib,pcd_open,pcd)
 HAVE_LIBGIF	:= $(call ac_lib,DGifOpenFileName,gif)
 HAVE_LIBWEBP	:= $(call ac_pkg_config,libwebp)