`tests/test_edgesec.c` code-coverage is inconsistent about edgesec

[aloisklink]

It looks like this is still an issue, as of dd4f7a6.

The issue seems to be that when GCC outputs the tracefile showing the code-coverage, it ignores this line, because it has no assembly associated with it:

edgesec/tests/test_edgesec.c

Line 79 in 39baecc

} else {

However, when Clang outputs their tracefile for code-coverage, it doesn't ignore this line.

The following line of code (the branch above the } else { line) is tested but only on the OpenWRT test preset, which only uses GCC.

edgesec/tests/test_edgesec.c

Line 78 in 39baecc

log_trace("RECEIVED ATTACH");

I think if we test this branch in Clang too, this should fix this issue.