Updated git submodules

Project: aai/esr-server master 2af1528498f33d0f60fcce157a9d6b0472b9b956

Add the API of query PNF.

Issue-ID: AAI-1498

Change-Id: Ie073f6b2643324b2038a2404886fa6e0286ab326
Signed-off-by: Zi Li <li.zi30@zte.com.cn>


diff --git a/docs/submodules/aai/esr-server.git b/docs/submodules/aai/esr-server.git
index 15dd5f0..2af1528 160000
--- a/docs/submodules/aai/esr-server.git
+++ b/docs/submodules/aai/esr-server.git
@@ -1 +1 @@
-Subproject commit 15dd5f02e728d546e6ba8c4d460b5f1a1e57d2b7
+Subproject commit 2af1528498f33d0f60fcce157a9d6b0472b9b956