package: add libraw package

[Peter: use ' = ' rather than ':=' in .mk]
Signed-off-by: Chih-Min Chao <cmchao@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
diff --git a/package/Config.in b/package/Config.in
index b5a1ee4..8e78f0f 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -282,6 +282,7 @@
 source "package/gdk-pixbuf/Config.in"
 source "package/libgtk2/Config.in"
 source "package/libpng/Config.in"
+source "package/libraw/Config.in"
 source "package/librsvg/Config.in"
 source "package/libsvgtiny/Config.in"
 source "package/libungif/Config.in"