Update iOS bot configs, ios-simulator-eg->ios-simulator-full-configs

Bug: 
Change-Id: I98d225c41b1122016e8758bce8da2365dbb9cf62
Reviewed-on: https://chromium-review.googlesource.com/775602Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517319}

tools/mb/mb_config.pyl

@@ -362,7 +362,7 @@
       'ios-device-xcode-clang': 'ios',
       'ios-simulator': 'ios',
       'ios-simulator-cronet': 'ios',
-      'ios-simulator-eg': 'ios',
+      'ios-simulator-full-configs': 'ios',
       'ios-simulator-xcode-clang': 'ios',
     },
 
@@ -646,7 +646,7 @@
       'ios-device': 'ios',
       'ios-device-xcode-clang': 'ios',
       'ios-simulator': 'ios',
-      'ios-simulator-eg': 'ios',
+      'ios-simulator-full-configs': 'ios',
       'ios-simulator-cronet': 'ios',
       'ios-simulator-xcode-clang': 'ios',
       'mac_chromium_10.10': 'gpu_tests_release_trybot',