Linux: Added linker script support for param and added mc_att_control

Added linker script to resolve __param_start and __param_end.

Added mc_att_control to list of supported builtins.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Tools/linux_run.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+if [ ! -c /tmp/ttyS0 ] || [ ! -c /tmp/ttyS1 ]
+	then
+	echo "Need to create /tmp/ttyS[01]"
+	echo "socat PTY,link=/tmp/ttyS0 PTY,link=/tmp/ttyS1"
+	exit 1
+fi
+
+if [ ! -d /fs/msdcard ] && [ ! -w /fs/msdcard ]
+	then
+	echo "Need to create/mount writable /fs/microsd"
+	echo "sudo mkdir -p /fs/msdcard"
+	echo "sudo chmod 777 /fs/msdcard"
+fi
+
+Build/linux_default.build/mainapp