Add previously debug-tagged modules

These all had `LOCAL_MODULE_TAGS := debug`

Test: treehugger
Change-Id: I848d1d9fb7e9921827ef6b5b72376710150ce839
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index 069828c..277346e 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -320,14 +320,18 @@
 PRODUCT_PACKAGES_DEBUG := \
     adb_keys \
     arping \
+    gdbserver \
+    init-debug.rc \
     iotop \
     iw \
     logpersist.start \
+    logtagd.rc \
     procrank \
     showmap \
     sqlite3 \
     ss \
     strace \
+    su \
     sanitizer-status \
     tracepath \
     tracepath6 \