package/python-twised: add conch and serial support

The conch subpackage is required by python-crossbar.

Added the serial subpackage while at it, even if it is not required by
Crossbar.

Signed-off-by: Emile Cormier <emile.cormier.jr@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-twisted/Config.in

@@ -29,4 +29,16 @@ config BR2_PACKAGE_PYTHON_TWISTED_TLS
 	select BR2_PACKAGE_PYTHON_PYOPENSSL # runtime
 	select BR2_PACKAGE_PYTHON_SERVICE_IDENTITY # runtime
 
+config BR2_PACKAGE_PYTHON_TWISTED_CONCH
+	bool "Conch support"
+	depends on BR2_PACKAGE_HOST_RUSTC_TARGET_ARCH_SUPPORTS # python-cryptography
+	select BR2_PACKAGE_PYTHON_APPDIRS # runtime
+	select BR2_PACKAGE_PYTHON_BCRYPT # runtime
+	select BR2_PACKAGE_PYTHON_CRYPTOGRAPHY # runtime
+	select BR2_PACKAGE_PYTHON_PYASN1 # runtime
+
+config BR2_PACKAGE_PYTHON_TWISTED_SERIAL
+	bool "Serial support"
+	select BR2_PACKAGE_PYTHON_SERIAL # runtime
+
 endif