Upgrade to nerves_system_rpi* v2.0.0

This also enables the nerves_runtime startup_guard to validate the
Raspberry Pi images on first boot. Validation isn't needed on the other
devices, but the start up guard will still trigger a reboot if the
device doesn't start all applications successfully. That's pretty
unlikely, though, since this project has pretty minimal application
startup work.

Author: fhunleth

config/target.exs

@@ -6,6 +6,8 @@ import Config
 
 config :shoehorn, init: [:nerves_runtime, :nerves_pack]
 
+config :nerves_runtime, startup_guard_enabled: true
+
 # Erlinit can be configured without a rootfs_overlay. See
 # https://github.com/nerves-project/erlinit/ for more information on
 # configuring erlinit.

mix.exs

@@ -70,14 +70,14 @@ defmodule CircuitsQuickstart.MixProject do
       {:nerves_ssh, "~> 1.2", targets: @all_targets},
 
       # Dependencies for specific targets
-      {:nerves_system_rpi, "~> 1.33", runtime: false, targets: :rpi},
-      {:nerves_system_rpi0, "~> 1.33", runtime: false, targets: :rpi0},
-      {:nerves_system_rpi0_2, "~> 1.33", runtime: false, targets: :rpi0_2},
-      {:nerves_system_rpi2, "~> 1.33", runtime: false, targets: :rpi2},
-      {:nerves_system_rpi3, "~> 1.33", runtime: false, targets: :rpi3},
-      {:nerves_system_rpi3a, "~> 1.33", runtime: false, targets: :rpi3a},
-      {:nerves_system_rpi4, "~> 1.33", runtime: false, targets: :rpi4},
-      {:nerves_system_rpi5, "~> 0.6", runtime: false, targets: :rpi5},
+      {:nerves_system_rpi, "~> 2.0", runtime: false, targets: :rpi},
+      {:nerves_system_rpi0, "~> 2.0", runtime: false, targets: :rpi0},
+      {:nerves_system_rpi0_2, "~> 2.0", runtime: false, targets: :rpi0_2},
+      {:nerves_system_rpi2, "~> 2.0", runtime: false, targets: :rpi2},
+      {:nerves_system_rpi3, "~> 2.0", runtime: false, targets: :rpi3},
+      {:nerves_system_rpi3a, "~> 2.0", runtime: false, targets: :rpi3a},
+      {:nerves_system_rpi4, "~> 2.0", runtime: false, targets: :rpi4},
+      {:nerves_system_rpi5, "~> 2.0", runtime: false, targets: :rpi5},
       {:nerves_system_bbb, "~> 2.29", runtime: false, targets: :bbb},
       {:nerves_system_osd32mp1, "~> 0.22", runtime: false, targets: :osd32mp1},
       {:nerves_system_x86_64, "~> 1.33", runtime: false, targets: :x86_64},