Fix default return code for getResource

Reorganization of getResource to allow for other densities accidentally
overrode the default return code for getResource from BAD_VALUE to
BAD_INDEX. This corrects the default return to BAD_VALUE which restores
other things to working.

Bug: 3155824
Change-Id: I13dafff85bc6978c5f5435fc09ab0474c7885c4d
diff --git a/libs/utils/ResourceTypes.cpp b/libs/utils/ResourceTypes.cpp
index 03d2e21..f287298 100644
--- a/libs/utils/ResourceTypes.cpp
+++ b/libs/utils/ResourceTypes.cpp
@@ -1949,7 +1949,7 @@
         desiredConfig = overrideConfig;
     }
 
-    ssize_t rc = BAD_INDEX;
+    ssize_t rc = BAD_VALUE;
     size_t ip = grp->packages.size();
     while (ip > 0) {
         ip--;