fix: update the openocd file for same70 xplained

tools/openocd/modm/atmel_same70_xplained.cfg

@@ -1,14 +1,13 @@
 #
-# Atmel SAMV71 Xplained Ultra evaluation kit.
-# http://www.atmel.com/tools/ATSAMV71-XULT.aspx
+# Atmel SAME70 Xplained evaluation kit.
+# https://www.microchip.com/en-us/development-tool/ATSAME70-XPLD
 #
-# To connect using the EDBG chip on the dev kit over USB, you will
-# first need to source [find interface/cmsis-dap.cfg]
-# however, since this board also has a SWD+ETM connector, we don't
-# automatically source that file here.
+# Connect using the EDBG chip on the dev kit over USB.
 
 source [find interface/cmsis-dap.cfg]
 
-set CHIPNAME same70
+set CHIPNAME atsame70q21
 
-source [find board/atmel_same70_xplained.cfg]
+source [find target/atsamv.cfg]
+
+reset_config srst_only