Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "bugfix fraser compute ci job"
  - bugfix fraser compute ci job

    https://build.opnfv.org/ci/view/qtip/job/qtip-compute-fuel-zte-virtual6-fraser/

    Installer type "fuel" should be replaced to "mcp".

    Change-Id: I9ecdfe8e8401532d32846cd94e4d9d06486e20e9
    Signed-off-by: zhihui wu <wu.zhihui1@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index c934821..fa1db37 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit c934821173ff9adb5608d4df2418ac23fa0b8251
+Subproject commit fa1db37ceb88695b3aeb069e1f56007bead3c523