Add Samsung Galaxy Tab 10.1 target. (Currently a private repo, deal with it.)

Change-Id: I86617d66f7961436b2b29211b4a33e15374adfb9
diff --git a/vendorsetup.sh b/vendorsetup.sh
index 26a44b1..dea3e4a 100644
--- a/vendorsetup.sh
+++ b/vendorsetup.sh
@@ -2,3 +2,4 @@
 add_lunch_combo cm_p990-userdebug
 add_lunch_combo cm_p999-userdebug
 add_lunch_combo cm_crespo-userdebug
+add_lunch_combo cm_GT_P7510-userdebug