Use libucrt instead of libmsvcr110

Bug: http://b/117796718

ucrt is either preinstalled in newer Windows or can be installed in
older Windows, whereas a dependence on msvcr110 doesn't work on Windows
without additional dependencies.

Test: Run generated binaries on Windows VM (7, 8, and 10) without
installing any extra dependencies.

Change-Id: Ibfaea5d78ac85ff4eeed35c97ad8cae4b44dadbc
diff --git a/cc/stl.go b/cc/stl.go
index 9dc8107..4870870 100644
--- a/cc/stl.go
+++ b/cc/stl.go
@@ -251,7 +251,7 @@
 		android.Linux:  []string{"-lgcc_s", "-lgcc", "-lc", "-lgcc_s", "-lgcc"},
 		android.Darwin: []string{"-lc", "-lSystem"},
 		android.Windows: []string{"-Wl,--start-group", "-lmingw32", "-lgcc", "-lgcc_eh",
-			"-lmoldname", "-lmingwex", "-lmsvcr110", "-lmsvcrt", "-lpthread",
+			"-lmoldname", "-lmingwex", "-lmsvcrt", "-lucrt", "-lpthread",
 			"-ladvapi32", "-lshell32", "-luser32", "-lkernel32", "-lpsapi",
 			"-Wl,--end-group"},
 	}