Update factory-config.cfg for NanoPi and RPi

The motd-banner was behind on the new slogan:

.-------.
|  . .  | Infix OS — Immutable.Friendly.Secure
|-. v .-| https://kernelkit.org
'-'---'-'

Signed-off-by: Joachim Wiberg <[email protected]>

Author: troglobit

board/aarch64/r2s/rootfs/etc/factory-config.cfg

@@ -153,7 +153,7 @@
         }
       ]
     },
-    "infix-system:motd-banner": "Li0tLS0tLS0uCnwgIC4gLiAgfCBJbmZpeCAtLSBhIE5ldHdvcmsgT3BlcmF0aW5nIFN5c3RlbQp8LS4gdiAuLXwgaHR0cHM6Ly9rZXJuZWxraXQuZ2l0aHViLmlvCictJy0tLSctJwo="
+    "infix-system:motd-banner": "Li0tLS0tLS0uCnwgIC4gLiAgfCBJbmZpeCBPUyDigJQgSW1tdXRhYmxlLkZyaWVuZGx5LlNlY3VyZQp8LS4gdiAuLXwgaHR0cHM6Ly9rZXJuZWxraXQub3JnCictJy0tLSctJwo="
   },
   "infix-dhcp-client:dhcp-client": {
     "client-if": [

src/board/raspberry-pi-4/rootfs/usr/share/product/raspberrypi,4-model-b/etc/factory-config.cfg

@@ -155,7 +155,7 @@
         }
       ]
     },
-    "infix-system:motd-banner": "Li0tLS0tLS0uCnwgIC4gLiAgfCBJbmZpeCAtLSBhIE5ldHdvcmsgT3BlcmF0aW5nIFN5c3RlbQp8LS4gdiAuLXwgaHR0cHM6Ly9rZXJuZWxraXQuZ2l0aHViLmlvCictJy0tLSctJwo="
+    "infix-system:motd-banner": "Li0tLS0tLS0uCnwgIC4gLiAgfCBJbmZpeCBPUyDigJQgSW1tdXRhYmxlLkZyaWVuZGx5LlNlY3VyZQp8LS4gdiAuLXwgaHR0cHM6Ly9rZXJuZWxraXQub3JnCictJy0tLSctJwo="
   },
   "infix-dhcp-client:dhcp-client": {
     "client-if": [