package/webkitgtk: select libseccomp when sandbox is enabled

Select BR2_PACKAGE_LIBSECCOMP when the sandboxing support is enabled
during configuration.

Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/webkitgtk/Config.in

@@ -61,6 +61,7 @@ config BR2_PACKAGE_WEBKITGTK_SANDBOX
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12 # libseccomp
 	select BR2_PACKAGE_BUBBLEWRAP # runtime
 	select BR2_PACKAGE_XDG_DBUS_PROXY # runtime
+	select BR2_PACKAGE_LIBSECCOMP
 	help
 	  Enable sandboxing of the processes used for network operation,
 	  disk access, and Web content rendering.