New boards with layouts for dual partition setups (#387)

* upgradable boards

* updates the install manual for proper SSL config

* storage locations from build script

* deploy script improvements

* UTC time

boards/nordic/nrf52840dk_opensk_a/Makefile

@@ -0,0 +1,31 @@
+# Makefile for building the tock kernel for the nRF development kit
+
+TARGET=thumbv7em-none-eabi
+PLATFORM=nrf52840dk_opensk_a
+
+include ../../Makefile.common
+
+TOCKLOADER=tockloader
+
+# Where in the SAM4L flash to load the kernel with `tockloader`
+KERNEL_ADDRESS=0x20000
+
+# Upload programs over uart with tockloader
+ifdef PORT
+  TOCKLOADER_GENERAL_FLAGS += --port $(PORT)
+endif
+
+# Upload the kernel over JTAG
+.PHONY: flash
+flash: $(TOCK_ROOT_DIRECTORY)target/$(TARGET)/release/$(PLATFORM).bin
+	$(TOCKLOADER) $(TOCKLOADER_GENERAL_FLAGS) flash --address $(KERNEL_ADDRESS) --board nrf52dk --jlink $<
+
+# Upload the kernel over JTAG using OpenOCD
+.PHONY: flash-openocd
+flash-openocd: $(TOCK_ROOT_DIRECTORY)target/$(TARGET)/release/$(PLATFORM).bin
+	$(TOCKLOADER) $(TOCKLOADER_GENERAL_FLAGS) flash --address $(KERNEL_ADDRESS) --board nrf52dk --openocd $<
+
+# Upload the kernel over serial/bootloader
+.PHONY: program
+program: $(TOCK_ROOT_DIRECTORY)target/$(TARGET)/release/$(PLATFORM).hex
+	$(error Cannot program nRF52840DK over USB. Use \`make flash\` and JTAG)