libweston-desktop: Fix libweston-desktop.pc

Also remove ${pkgincludedir} to be on par with libweston.pc.

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

libweston-desktop/libweston-desktop.pc.in

@@ -2,11 +2,10 @@ prefix=@prefix@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
 includedir=@includedir@
-pkgincludedir=${includedir}/libweston-@LIBWESTON_ABI_VERSION@
 
 Name: libweston-desktop
 Description: Desktop shells abstraction library for libweston compositors
 Version: @WESTON_VERSION@
-Requires.private: libweston-@LIBWESTON_ABI_VERSION@ wayland-server
-Cflags: -I${pkgincludedir}
-Libs: -L${libdir} -lweston-desktop-@LIBWESTON_ABI_VERSION@
+Requires.private: libweston-@LIBWESTON_MAJOR@ wayland-server
+Cflags: -I${includedir}/libweston-@LIBWESTON_MAJOR@
+Libs: -L${libdir} -lweston-desktop-@LIBWESTON_MAJOR@