JLink debuggers

[nickray]

I have run into the issue that #35 was meant to fix.

Environment:

• LPCXpresso55S69 with
• Firmware_JLink_LPCXpressoV2_20190404.bin
  as described in https://www.segger.com/products/debug-probes/j-link/models/other-j-links/lpcxpresso-on-board/.

Example: https://github.com/nickray/lpc55s6x-hal/blob/master/examples/semihosting.rs

(gdb) c
Continuing.
uuid = [panicked at '
Program received signal SIGTRAP, Trace/breakpoint trap.
0x000024ae in __bkpt ()

For now, the fix in that pull request fixed it:

(gdb) c
Continuing.
uuid = [c8ded018, 55025d23, 906643bc, 3e3c4a61]

Using openocd is not an option, as it currently has no support for the chip AFAIK.

[nickray]

Closing as my PR was merged.