qcom: pd-mapper: Update Android.bp srcs

cherry-picked from upstream device/linaro/dragonboard project.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Change-Id: I8b6f6907fd27e775fd399b109cd660372a6a6252
diff --git a/qcom/pd-mapper/Android.bp b/qcom/pd-mapper/Android.bp
index 84c065f..3bdbc32 100644
--- a/qcom/pd-mapper/Android.bp
+++ b/qcom/pd-mapper/Android.bp
@@ -3,6 +3,8 @@
     vendor: true,
     srcs: [
 	"pd-mapper.c",
+	"assoc.c",
+	"json.c",
 	"servreg_loc.c",
     ],
     shared_libs: ["libqrtr"],