Add comments to dtb settings in fwup.conf

Author: fhunleth

fwup_include/provisioning.conf

@@ -5,11 +5,15 @@
 # will default to a built-in ID.
 uboot_setenv(uboot-env, "nerves_serial_number", "\${NERVES_SERIAL_NUMBER}")
 
-# Device tree overlay settings
+# Nerves default device tree overlay settings
+#
+# 1. Enable overlay support
+# 2. Enable Universal I/O so that config-pin works
 uboot_setenv(uboot-env, "enable_uboot_overlays", "1")
+uboot_setenv(uboot-env, "enable_uboot_cape_universal", "1")
+
+# Testing (do not merge to master)
 uboot_setenv(uboot-env, "disable_uboot_overlay_video", "1")
 uboot_setenv(uboot-env, "disable_uboot_overlay_audio", "1")
-
-uboot_setenv(uboot-env, "enable_uboot_cape_universal", "1")
 #uboot_setenv(uboot-env, "dtb_overlay", "/lib/firmware/BB-SPIDEV0-00A0.dtbo")
 #uboot_setenv(uboot-env, "uboot_overlay_addr0", "/lib/firmware/BB-SPIDEV0-00A0.dtbo")