clover: compile all sources with c++11

Later we can remove the compat code

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

src/gallium/state_trackers/clover/Makefile.am

@@ -35,12 +35,13 @@ endif
 noinst_LTLIBRARIES = libclover.la libcltgsi.la libclllvm.la
 
 libcltgsi_la_CXXFLAGS = \
-	-std=c++0x \
+	-std=c++11 \
 	$(VISIBILITY_CXXFLAGS)
 
 libcltgsi_la_SOURCES = $(TGSI_SOURCES)
 
 libclllvm_la_CXXFLAGS = \
+	-std=c++11 \
 	$(VISIBILITY_CXXFLAGS) \
 	$(LLVM_CXXFLAGS) \
 	$(DEFINES) \