libcurl: Add rtmp support

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Cc: Bernd Kuhls <berndkuhls@hotmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libcurl/libcurl.mk

@@ -9,7 +9,8 @@ LIBCURL_SOURCE = curl-$(LIBCURL_VERSION).tar.bz2
 LIBCURL_SITE = http://curl.haxx.se/download
 LIBCURL_DEPENDENCIES = host-pkgconf \
 	$(if $(BR2_PACKAGE_ZLIB),zlib) \
-	$(if $(BR2_PACKAGE_LIBIDN),libidn)
+	$(if $(BR2_PACKAGE_LIBIDN),libidn) \
+	$(if $(BR2_PACKAGE_RTMPDUMP),rtmpdump)
 LIBCURL_LICENSE = ICS
 LIBCURL_LICENSE_FILES = COPYING
 LIBCURL_INSTALL_STAGING = YES