package/webkit: select cairo, since we select one of its options

When selecting an option of a package, that package must also be
selected, otherwise the package is not built.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/webkit/Config.in

@@ -17,6 +17,7 @@ config BR2_PACKAGE_WEBKIT
 	depends on BR2_PACKAGE_LIBGTK2
 	depends on BR2_PACKAGE_WEBKIT_ARCH_SUPPORTS
 	depends on !BR2_BINFMT_FLAT # icu
+	select BR2_PACKAGE_CAIRO
 	select BR2_PACKAGE_CAIRO_PNG
 	select BR2_PACKAGE_ENCHANT
 	select BR2_PACKAGE_HARFBUZZ