[sanitizer-common][rtsan] Fix log and stack printing for rtsan (#215707)

Fixes:
* sanitizer_common/TestCases/suffix-log-path_test.c
* sanitizer_common/TestCases/print-stack-trace.cpp

These two tests have some overlap, which is why they are fixed in the
same commit. Functionally, this means:
* RTSan now exports the common `__sanitizer_print_stack_trace` API, from
what I understand from the comment on the master version of this, this
is for debuggers to call
* RTSan can now report out to a log file using the common utilities

GitOrigin-RevId: 227ec3e87fd013ad1963827144ff8f6e9d762510