Update stale bazel paths to dx/dx.jar.
Overwrite dx, dx.jar file unders tools/, tools/lib respectively, to the version that used to live under tools/linux/bin, tools/linux/lib respectively.

Test: b build build/bazel/examples/android_app/java/com/app --fat_apk_cpu=k8
Change-Id: Ide59e28b1c942b3b555bb2d48d16b00a17a8ad5d
diff --git a/BUILD.bazel b/BUILD.bazel
index f1e7c8c..4d273e4 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -8,7 +8,7 @@
     aidl = "//prebuilts/sdk/tools:linux/bin/aidl",
     android_jar = "30/public/android.jar",
     apksigner = ":apksigner",
-    dx = "//prebuilts/sdk/tools:linux/bin/dx",  # TODO: add D8
+    dx = "//prebuilts/sdk/tools:dx",  # TODO: add D8
     framework_aidl = "30/public/framework.aidl",
     main_dex_classes = "//prebuilts/sdk/tools:mainDexClasses.rules",
     main_dex_list_creator = ":fail",
@@ -20,7 +20,7 @@
 
 java_import(
     name = "dx_jar_import",
-    jars = ["//prebuilts/sdk/tools:linux/lib/dx.jar"],
+    jars = ["//prebuilts/sdk/tools:lib/dx.jar"],
     visibility = ["//visibility:public"],
 )