Add nrfmicro 1.1, 1.1 flipped and 1.3 boards.

app/boards/arm/nrfmicro/Kconfig.defconfig

@@ -0,0 +1,33 @@
+# Electronut Labs Papyr board configuration
+
+# Copyright (c) 2020 Okke Formsma, joric
+# SPDX-License-Identifier: MIT
+
+if BOARD_NRFMICRO_11 || BOARD_NRFMICRO_11_FLIPPED || BOARD_NRFMICRO_13
+
+config BOARD
+	default "nrfmicro"
+
+if USB
+
+config USB_NRFX
+	default y
+
+config USB_DEVICE_STACK
+	default y
+
+endif # USB
+
+config BT_CTLR
+	default BT
+
+config ZMK_BLE
+	default y
+
+config ZMK_USB
+	default y
+
+config PINMUX
+	default y
+	
+endif # BOARD_NRFMICRO_11 || BOARD_NRFMICRO_11_FLIPPED || BOARD_NRFMICRO_13