SSH: Use new banner and tempio (#1800)

* SSH: Use new banner and tempio

* fix change for tests

* Update ssh/build.json

Co-authored-by: Franck Nijhof <git@frenck.dev>

* fix build

Co-authored-by: Franck Nijhof <git@frenck.dev>

ssh/rootfs/usr/share/tempio/sshd_config

@@ -0,0 +1,26 @@
+# This is the sshd server system-wide configuration file.  See
+# sshd_config(5) for more information.
+
+# Logging
+LogLevel INFO
+
+# Default
+AllowTcpForwarding {{ if .server.tcp_forwarding }}yes{{ else }}no{{ end }}
+GatewayPorts no
+X11Forwarding no
+
+Subsystem       sftp    /usr/lib/ssh/sftp-server
+
+# Authentication:
+PermitRootLogin yes
+
+Banner none
+PrintMotd no
+
+{{ if .authorized_keys }}
+PasswordAuthentication no
+{{ else if .password }}
+PasswordAuthentication yes
+PermitEmptyPasswords no
+{{ end }}
+