Add installd to PRODUCT_PACKAGES

Another change adds the "optional" tag to installd, so moving it here
and removing it from the grandfathered list.

Change-Id: I035ffd527d007cf104c15890509976fc9b99d216
diff --git a/core/user_tags.mk b/core/user_tags.mk
index 19ac59e..39c66da1 100644
--- a/core/user_tags.mk
+++ b/core/user_tags.mk
@@ -153,7 +153,6 @@
 	ime \
 	init \
 	input \
-	installd \
 	ip \
 	iptables \
 	iself \
diff --git a/target/product/core.mk b/target/product/core.mk
index e2e7d4b..c38062c 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -41,6 +41,7 @@
     framework-res \
     hprof-conv \
     icu.dat \
+    installd \
     ip-up-vpn \
     jasmin \
     jasmin.jar \