lib/protobuf-c: Add protobuf-c library.

iabdalkader · dpgeorge · commit dc5ea0c77d87 · 2023-09-14T23:51:30.000+10:00
Signed-off-by: iabdalkader &lt;i.abdalkader@gmail.com&gt;
diff --git a/.gitmodules b/.gitmodules
@@ -56,3 +56,6 @@
 [submodule "lib/micropython-lib"]
 	path = lib/micropython-lib
 	url = https://github.com/micropython/micropython-lib.git
+[submodule "lib/protobuf-c"]
+	path = lib/protobuf-c
+	url = https://github.com/protobuf-c/protobuf-c.git
diff --git a/lib/protobuf-c b/lib/protobuf-c
@@ -0,0 +1 @@
+Subproject commit abc67a11c6db271bedbb9f58be85d6f4e2ea8389
