Android uses -fpic for arm64 as well.

llvm-svn: 207642
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 04df926..94d13b2 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -2370,6 +2370,7 @@
     case llvm::Triple::thumb:
     case llvm::Triple::thumbeb:
     case llvm::Triple::aarch64:
+    case llvm::Triple::arm64:
     case llvm::Triple::mips:
     case llvm::Triple::mipsel:
     case llvm::Triple::mips64: