win32: Add configuration for profiler

Without this the generated xsltconfig.h will not be complete as there
will be a configuration variable that is left in the header, breaking
builds.

This will allow one to enable or disable profiler support in Windows
builds, and the default is to enable this.
3 jobs for master.win.fix in 4 minutes and 59 seconds (queued for 1 second)
latest
Status Name Job ID Coverage
  Test
passed clang:asan #498640

00:04:58

passed clang:msan #498641

00:03:08

passed gcc #498639

00:03:22