Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - correct document of module apex_generate_inventory

    Change-Id: I10bfd526e377ae02d2f6cf6d60d82fbb175ac431
    Signed-off-by: zhihui wu <wu.zhihui1@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index eb9ab80..5bb3d7c 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit eb9ab80b8bb3c7a00ac1f5227f41b6495db603ec
+Subproject commit 5bb3d7cbc15957c3f0e82f19568240600d0f6592