openssl: Make DTLS configurable.

Signed-off by: Rosen Penev <rosenp@gmail.com>

package/libs/openssl/Config.in

@@ -20,6 +20,11 @@ config OPENSSL_WITH_DEPRECATED
 	default y
 	prompt "Include deprecated APIs"
 
+config OPENSSL_WITH_DTLS
+	bool
+	default n
+	prompt "Enable DTLS support"
+
 config OPENSSL_WITH_COMPRESSION
 	bool
 	default n

package/libs/openssl/Makefile

@@ -35,6 +35,7 @@ PKG_CONFIG_DEPENDS:= \
 	CONFIG_OPENSSL_WITH_SSL3 \
 	CONFIG_OPENSSL_HARDWARE_SUPPORT \
 	CONFIG_OPENSSL_WITH_DEPRECATED \
+	CONFIG_OPENSSL_WITH_DTLS \
 	CONFIG_OPENSSL_WITH_COMPRESSION \
 	CONFIG_OPENSSL_WITH_NPN \
 	CONFIG_OPENSSL_WITH_PSK \
@@ -130,6 +131,10 @@ ifndef CONFIG_OPENSSL_WITH_DEPRECATED
   OPENSSL_OPTIONS += no-deprecated
 endif
 
+ifndef CONFIG_OPENSSL_WITH_DTLS
+  OPENSSL_OPTIONS += no-dtls
+endif
+
 ifdef CONFIG_OPENSSL_WITH_COMPRESSION
   OPENSSL_OPTIONS += zlib-dynamic
 else