yaml tidyups and warning removals

esphome/esp-garageentrylights2.yaml

@@ -82,6 +82,15 @@ packages:
   #diag_debug:       !include common/include_debug_diag_sensors.yaml
   #diag_resetcount:  !include common/include_resetcount_diag_sensors.yaml
 
+  # Package item removals
+wifi:
+  min_auth_mode: !remove # The WPA2 only works on esp32/8266
+  reboot_timeout: 15min    # override the selection from from the common package
+  fast_connect: false      # (optional) force off, in case package vars change
+
+mqtt:
+  keepalive: 15s # overriding the value from the common package
+
 #############################################
 # ESPHome
 # https://esphome.io/components/esphome.html