Add librs_jni to the sdk product packages.

This is similar to 88e76ceca0514ce4ff5558d2f5842cdfe07f811c
but the SDK build does not extend generic_no_telephony.

Change-Id: Id01178b2a89d002aca52d57ad7c9dfb4e1184216
diff --git a/target/product/sdk.mk b/target/product/sdk.mk
index b856b11..5f5c806 100644
--- a/target/product/sdk.mk
+++ b/target/product/sdk.mk
@@ -41,7 +41,8 @@
 	guavalib \
 	jsr305lib \
 	jython \
-	jsilver
+	jsilver \
+	librs_jni
 
 #	Calculator \
 #	Camera \