package/jailhouse: python scripts needs python-mako

jailhouse-config-create script needs python-mako, see
https://github.com/siemens/jailhouse/commit/5c7f2c4c30f19aa7eb95dffa7b7bb92393c09ba7



Moreover jailhouse-config-create needs host-python-mako to build
jailhouse-config-collect

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>