Fix module-file name collisions

Bazel doesn't allow a module and file with the same name.

Bug: 198619163
Test: Presubmits
Change-Id: I4767071d591c89cea8c2d53e4bd41eb3405a36be
diff --git a/tools/dexfuzz/Android.bp b/tools/dexfuzz/Android.bp
index 02bda0e..083ecd7 100644
--- a/tools/dexfuzz/Android.bp
+++ b/tools/dexfuzz/Android.bp
@@ -33,6 +33,6 @@
 // --- dexfuzz script ----------------
 sh_binary_host {
     name: "dexfuzz-script",
-    src: "dexfuzz",
-    filename_from_src: true,
+    src: "dexfuzz.sh",
+    filename: "dexfuzz",
 }
diff --git a/tools/dexfuzz/dexfuzz b/tools/dexfuzz/dexfuzz.sh
similarity index 100%
rename from tools/dexfuzz/dexfuzz
rename to tools/dexfuzz/dexfuzz.sh