Implement --noinhibit-exec.

Patch by George Rimar!

llvm-svn: 248605
diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp
index deafb6a..307bb08 100644
--- a/lld/ELF/Driver.cpp
+++ b/lld/ELF/Driver.cpp
@@ -94,6 +94,9 @@
   if (Args.hasArg(OPT_export_dynamic))
     Config->ExportDynamic = true;
 
+  if (Args.hasArg(OPT_noinhibit_exec))
+    Config->NoInhibitExec = true;
+
   // Create a list of input files.
   std::vector<MemoryBufferRef> Inputs;