app: fix build with extra include paths

[ upstream commit 64fd212 ]

The "includes" variable in the app/meson.build file was ignored when
building the executable, meaning that apps couldn't pass additional
include paths directly back. Fix this to align with drivers and libs.

Fixes: fa036e7 ("app: generalize meson build")

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>

app/meson.build

@@ -62,6 +62,7 @@ foreach app:apps
 				c_args: cflags,
 				link_whole: link_libs,
 				dependencies: dep_objs,
+				include_directories: includes,
 				install_rpath: join_paths(get_option('prefix'),
 						 driver_install_path),
 				install: true)