Update git submodules

* Update docs/submodules/so/libs.git from branch 'master'
  to 43e0541c889dff97f1368e0994254e26c2ccbfe6
  - changed sprint number for build for issue so-2361

    earlier Addressed the error in retrieving subnets
    with SO Libs. Now chaging sprint number for build

    Issue-ID: SO-2361
    Signed-off-by: Ramesh Parthasarathy(rp6768)<ramesh.parthasarathy@att.com>
    Change-Id: I0fb8ba275229eebe0504176540f9f4b8e4574f9e

diff --git a/docs/submodules/so/libs.git b/docs/submodules/so/libs.git
index e0b745e..43e0541 160000 (submodule)
--- a/docs/submodules/so/libs.git
+++ b/docs/submodules/so/libs.git
@@ -1 +1 @@
-Subproject commit e0b745eb060db35bb3da1a24ee778b622da9295b
+Subproject commit 43e0541c889dff97f1368e0994254e26c2ccbfe6