Frameworks: Move Log holder to be preloaded

To avoid issues with late initialization, let the holder be
initialized in the zygote.

Bug: 65927416
Test: m
Change-Id: I6f454df46d4c64d295e1f2510793d5087b74fb74
diff --git a/config/preloaded-classes-extra b/config/preloaded-classes-extra
index 959fff5..09f393a 100644
--- a/config/preloaded-classes-extra
+++ b/config/preloaded-classes-extra
@@ -8,6 +8,7 @@
 android.media.SoundPool
 android.text.format.Formatter
 android.text.Html$HtmlParser
+android.util.Log$PreloadHolder
 com.android.org.conscrypt.TrustedCertificateStore
 org.ccil.cowan.tagsoup.HTMLScanner
 sun.security.jca.Providers