debuggers: import openocd-0.7.0

Initial check-in of openocd-0.7.0 as it can be downloaded from
http://sourceforge.net/projects/openocd/files/openocd/0.7.0/

Any modifications will follow.

Change-Id: I6949beaefd589e046395ea0cb80f4e1ab1654d55

debuggers/openocd/tcl/target/stm32f3x_stlink.cfg

@@ -0,0 +1,20 @@
+#
+# STM32f3x stlink pseudo target
+#
+
+if { [info exists CHIPNAME] == 0 } {
+   set CHIPNAME stm32f3x
+}
+
+if { [info exists CPUTAPID] == 0 } {
+   set CPUTAPID 0x2ba01477
+}
+
+if { [info exists WORKAREASIZE] == 0 } {
+   set WORKAREASIZE 0x4000
+}
+
+source [find target/stm32_stlink.cfg]
+
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME stm32f1x 0 0 0 0 $_TARGETNAME