Simplify handling of --noexecstack by using getNonexecutableStackSection.

llvm-svn: 219799
diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index 2bfb9ba..f11ee66 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -182,7 +182,7 @@
                                      MCSymbol *EHSymbol) {
 }
 
-void MCStreamer::InitSections() {
+void MCStreamer::InitSections(bool NoExecStack) {
   SwitchSection(getContext().getObjectFileInfo()->getTextSection());
 }