Set -Xdoclint:none

Mac builds use a javadoc tool that fails on more warnings than linux
builds.  Add -Xdoclint:none to all java 8 standard doclet javadoc
commands.

Don't add it to javadoc commands that use the com.google.doclava.Doclava
doclet, it doesn't understand -Xdoclint:none.

Change-Id: I6c2f69555ca64b028d22b06286156491f51ac86c
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index 5c43a68..432ba11 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -215,6 +215,7 @@
                 \@$(PRIVATE_SRC_LIST_FILE) \
                 -J-Xmx1024m \
                 -XDignore.symbol.file \
+                $(if $(EXPERIMENTAL_USE_JAVA8),-Xdoclint:none) \
                 $(PRIVATE_PROFILING_OPTIONS) \
                 $(addprefix -classpath ,$(PRIVATE_CLASSPATH)) \
                 $(addprefix -bootclasspath ,$(PRIVATE_BOOTCLASSPATH)) \