Follow-up to r1326337: avoid a macro name clash.
Follow-up to r1326337: avoid a macro name clash.

* subversion/libsvn_subr/named_atomic.c
  (SYNCHRONIZE, SYNCHRONIZE_IS_FAST): Rename to..
  (NA_SYNCHRONIZE, NA_SYNCHRONIZE_IS_FAST): .. these, respectively.
  (*): Update references.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion