#1 Bad output in ptrace_stackdump_from

[Harald Kipp]

I assume that there is a problem with the string parameter of the function call uart_debug_strhex32 in ptrace_stackdump_from.

1. Local variable depth is always zero.
2. buf[1] is always zero and the PC is never printed.

Note, that I didn't test anything. I visually checked the code only.