pthread: Move most barrier tests from nptl to sysdeps/pthread

So they can be checked with htl too.

nptl/Makefile

@@ -250,7 +250,6 @@ tests = tst-attr2 tst-attr3 tst-default-attr \
 	tst-rwlock14 tst-rwlock15 tst-rwlock17 tst-rwlock18 \
 	tst-once5 \
 	tst-sem5 tst-sem17 \
-	tst-barrier1 tst-barrier2 tst-barrier3 tst-barrier4 \
 	tst-align tst-align3 \
 	tst-kill1 tst-kill2 tst-kill3 tst-kill4 tst-kill5 tst-kill6 \
 	tst-raise1 \

sysdeps/mach/hurd/i386/Makefile

@@ -112,6 +112,7 @@ test-xfail-tst-cond23 = yes
 test-xfail-tst-rwlock4 = yes
 test-xfail-tst-rwlock12 = yes
 test-xfail-tst-sem3 = yes
+test-xfail-tst-barrier2 = yes
 endif
 
 # For bug 25522

sysdeps/pthread/Makefile

@@ -43,6 +43,7 @@ tests += tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \
 	 tst-cnd-timedwait tst-thrd-detach tst-mtx-basic tst-thrd-sleep \
 	 tst-mtx-recursive tst-tss-basic tst-call-once tst-mtx-timedlock \
 	 tst-attr1 \
+	 tst-barrier1 tst-barrier2 tst-barrier3 tst-barrier4 \
 	 tst-basic1 tst-basic2 tst-basic3 tst-basic4 tst-basic5 tst-basic6 \
 	 tst-basic7 \
 	 tst-cond1 tst-cond2 tst-cond3 tst-cond4 tst-cond5 tst-cond6 tst-cond7 \