apm821xx: add support for the Cisco Meraki MR24

This patch adds support for the Cisco Meraki MR24 Access point
to the apm821xx target.

Board:		MR24 - Meraki MR24 Cloud Managed Access Point
CPU:		APM82181 SoC 800 MHz (PLB=200 OPB=100 EBC=100)
Flash size:	32MiB
RAM Size:	128MiB
Wireless:	Atheros AR9380 5.0GHz + Atheros AR9380 2.4GHz
Ethernet ports:	1x Gigabit Atheros AR8035

WARNING: The serial port needs a TTL/RS-232 v3.3 level converter!

For flashing instructions, visit:
<https://github.com/riptidewave93/Openwrt-MR24/blob/master/README.md#flashing>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>

tools/firmware-utils/src/mkmerakifw.c

@@ -62,6 +62,16 @@ static const struct board_info boards[] = {
 				   0xbf, 0xef, 0x95, 0x60, 0x18,
 				   0x90, 0xaf, 0xd8, 0x07, 0x09},
 	}, {
+		.id		= "mr24",
+		.description	= "Meraki MR24 Access Point",
+		.magic		= 0x8e73ed8a,
+		.imagelen	= 0x00800000,
+		.statichash	= {0xff, 0xff, 0xff, 0xff, 0xff,
+				   0xff, 0xff, 0xff, 0xff, 0xff,
+				   0xff, 0xff, 0xff, 0xff, 0xff,
+				   0xff, 0xff, 0xff, 0xff, 0xff},
+	}, {
+
 		/* terminating entry */
 	}
 };