Android: Rename __build_config targets to __build_config_crbug_908819

Goal is to surface give a pointer in "missing dependency" error messages
about why the non-existent dependency was added.

TBR=agrieve  # Trivial rename

Bug: 908819
Change-Id: I42a7b791658101985ec90afe85cbfe54de86b8df
Reviewed-on: https://chromium-review.googlesource.com/c/1361933
Commit-Queue: agrieve <[email protected]>
Reviewed-by: Eric Stevenson <[email protected]>
Cr-Commit-Position: refs/heads/master@{#614262}
diff --git a/build/android/docs/build_config.md b/build/android/docs/build_config.md
index 29764eec..797587f 100644
--- a/build/android/docs/build_config.md
+++ b/build/android/docs/build_config.md
@@ -85,7 +85,7 @@
 ```
 python ../../build/android/gyp/write_build_config.py \
     --type=android_resources \
-    --depfile gen/ui/android/ui_java_resources__build_config.d \
+    --depfile gen/ui/android/ui_java_resources__build_config_crbug_908819.d \
     --deps-configs=\[\"gen/ui/android/ui_strings_grd.build_config\"\] \
     --build-config gen/ui/android/ui_java_resources.build_config \
     --resources-zip resource_zips/ui/android/ui_java_resources.resources.zip \