Move Zephyr app into subdirectory.

app/boards/arm/planck/Kconfig.defconfig

@@ -0,0 +1,39 @@
+# Planck keyboard configuration
+
+# Copyright (c) 2017 I-SENSE group of ICCS
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_PLANCK_REV6
+
+config BOARD
+	default "planck_rev6"
+
+config UART_1
+	default y
+	depends on UART_CONSOLE
+
+if I2C
+
+config I2C_1
+	default y
+
+config I2C_2
+	default y
+
+endif # I2C
+
+if SPI
+
+config SPI_1
+	default y
+
+config SPI_2
+	default y
+
+endif # SPI
+
+config CAN_1
+	default y
+	depends on CAN
+
+endif # BOARD_PLANCK_REV6