Make armv6 iOS by default

Author: Un1q32

clang/lib/Driver/ToolChains/Darwin.cpp

@@ -2145,7 +2145,8 @@ inferDeploymentTargetFromArch(DerivedArgList &Args, const Darwin &Toolchain,
   StringRef MachOArchName = Toolchain.getMachOArchName(Args);
   if (MachOArchName == "arm64" || MachOArchName == "arm64e")
     OSTy = llvm::Triple::MacOSX;
-  else if (MachOArchName == "armv7" || MachOArchName == "armv7s")
+  else if (MachOArchName == "armv7" || MachOArchName == "armv7s" ||
+           MachOArchName == "armv6")
     OSTy = llvm::Triple::IOS;
   else if (MachOArchName == "armv7k" || MachOArchName == "arm64_32")
     OSTy = llvm::Triple::WatchOS;