Update libjpeg-turbo to 1.5.1, enable arithmetic decoding

BUG=skia:4710

Change-Id: Idac44f7bdf140f1288bc1538f28ab1a4e1ccaae6
Reviewed-on: https://skia-review.googlesource.com/8274
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
diff --git a/DEPS b/DEPS
index 2ed0235..4617ca7 100644
--- a/DEPS
+++ b/DEPS
@@ -20,7 +20,7 @@
   "third_party/externals/dng_sdk" : "https://android.googlesource.com/platform/external/dng_sdk.git@96443b262250c390b0caefbf3eed8463ba35ecae",
   "third_party/externals/piex"    : "https://android.googlesource.com/platform/external/piex.git@8f540f64b6c170a16fb7e6e52d61819705c1522a",
 
-  "third_party/externals/libjpeg-turbo"             : "https://skia.googlesource.com/third_party/libjpeg-turbo.git@debddedc75850bcdeb8a57258572f48b802a4bb3",
+  "third_party/externals/libjpeg-turbo"             : "https://skia.googlesource.com/third_party/libjpeg-turbo.git@6de58e0d28014caf2fc1370145f22fd6d65f63e3",
   # libjpeg-turbo depends on yasm to compile .asm files
   "third_party/externals/yasm/source/patched-yasm/" : "https://chromium.googlesource.com/chromium/deps/yasm/patched-yasm.git@4671120cd8558ce62ee8672ebf3eb6f5216f909b",
   "third_party/externals/yasm/binaries"             : "https://chromium.googlesource.com/chromium/deps/yasm/binaries.git@52f9b3f4b0aa06da24ef8b123058bb61ee468881",