Use pthread_setname_np when available.

Switch from HAVE_PTHREAD_SETNAME_NP to HAVE_ANDROID_PTHREAD_SETNAME_NP.
The change to favor it over prctl() already went in (external change
https://review.source.android.com/#change,15205 ).

Change-Id: I3804b4c9d828d7a125cc4f0c8030e5832b5aeaf4
1 file changed