Add Conexio Stratus board configuration for DFU button operation

Signed-off-by: Rajeev Piyare <rajeev@conexiotech.com>
diff --git a/boot/zephyr/boards/conexio_stratus.conf b/boot/zephyr/boards/conexio_stratus.conf
new file mode 100644
index 0000000..6bc5f8c
--- /dev/null
+++ b/boot/zephyr/boards/conexio_stratus.conf
@@ -0,0 +1,21 @@
+# Disable Zephyr console
+CONFIG_CONSOLE=n
+CONFIG_CONSOLE_HANDLER=n
+CONFIG_UART_CONSOLE=n
+
+# Multithreading
+CONFIG_MULTITHREADING=y
+
+# MCUBoot settings
+CONFIG_BOOT_MAX_IMG_SECTORS=256
+
+# MCUboot serial recovery
+CONFIG_MCUBOOT_SERIAL=y
+CONFIG_BOOT_SERIAL_DETECT_PORT="GPIO_0"
+CONFIG_BOOT_SERIAL_DETECT_PIN=12
+CONFIG_BOOT_SERIAL_DETECT_PIN_VAL=0
+CONFIG_BOOT_SERIAL_DETECT_DELAY=450
+CONFIG_MCUBOOT_INDICATION_LED=y
+
+# Size of mcuboot partition
+CONFIG_SIZE_OPTIMIZATIONS=y