Update BUILDCONFIG.gn to support Visual Studio 2017 Enterprise

Bug: skia:
Change-Id: I7723a545d2f5ed78f6637aa9b8990e28785f86fb
Reviewed-on: https://skia-review.googlesource.com/c/182191
Auto-Submit: Dawson Coleman <dawsonmcoleman@gmail.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/AUTHORS b/AUTHORS
index ea3e0ea..a0fd225 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -15,6 +15,7 @@
 Amazon, Inc <*@amazon.com>
 Anthony Catel <paraboul@gmail.com>
 ARM <*@arm.com>
+Dawson Coleman <dawsonmcoleman@gmail.com>
 Ehsan Akhgari <ehsan.akhgari@gmail.com>
 Facebook, Inc. <*fb.com>
 George Wright <george@mozilla.com>