[RFC PATCH 1/5] add lwip-external submodule

[Maxim Uvarov]

Signed-off-by: Maxim Uvarov <maxim.uvarov at linaro.org>
---
 .gitmodules            | 3 +++
 lib/lwip/lwip-external | 1 +
 2 files changed, 4 insertions(+)
 create mode 100644 .gitmodules
 create mode 160000 lib/lwip/lwip-external

diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000..afc709af10
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/lwip/lwip-external"]
+	path = lib/lwip/lwip-external
+	url = https://git.savannah.nongnu.org/git/lwip.git
diff --git a/lib/lwip/lwip-external b/lib/lwip/lwip-external
new file mode 160000
index 0000000000..3fe8d2fc43
--- /dev/null
+++ b/lib/lwip/lwip-external
@@ -0,0 +1 @@
+Subproject commit 3fe8d2fc43a9b69f7ed28c63d44a7744f9c0def9
-- 
2.30.2