qcacmn: Add conditional macro for tracing threads

Kernel 5.2 has removed the stack_trace struct and replaced
print_stack_trace() and save_stack_trace_tsk() with stack_trace_print()
and stack_trace_save_tsk() respectively. Add a conditional preprocessor
directive to use save_trace_print() and stack_trace_save_tsk() and call
them with the appropriate updated parameters.

Change-Id: I99643e1b93251de7453f511d13f5a4a39c56f99c
CRs-Fixed: 2559033
1 file changed