Rename avfutil to avflog

.. so that it won't become a dump ground.

Bug: 295168844
Test: build
Change-Id: I7e583211ac9d2db0d56fdfa0092c91a123f138ea
diff --git a/microdroid_manager/Android.bp b/microdroid_manager/Android.bp
index f23c442..23f174e 100644
--- a/microdroid_manager/Android.bp
+++ b/microdroid_manager/Android.bp
@@ -15,7 +15,7 @@
         "android.system.virtualization.payload-rust",
         "libandroid_logger",
         "libanyhow",
-        "libavfutil",
+        "libavflog",
         "libapexutil_rust",
         "libapkverify",
         "libbinder_rs",