cfg: add Stellaris LM4F232 Evaluation Kit config

Change-Id: Ica754897bef6573a0738ed1afdfe1dfda07292fd
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/151
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>

tcl/board/ek-lm4f232.cfg

@@ -0,0 +1,13 @@
+#
+# TI Stellaris LM4F232 Evaluation Kits
+#
+# http://www.ti.com/tool/ek-lm4f232
+#
+
+# NOTE:  using the bundled FT2232 JTAG/SWD/SWO interface is optional!
+# so is using in JTAG mode, as done here.
+source [find interface/luminary-icdi.cfg]
+
+set WORKAREASIZE 0x8000
+set CHIPNAME lm4f23x
+source [find target/stellaris.cfg]