[build]: .gitmodules: Fix make init (sonic-net#6828)

* remove trailing / from url for submodule "platform/mellanox/hw-management/hw-mgmt"

Signed-off-by: Don Newton [email protected]

Author: donNewtonAlpha

.gitmodules

@@ -59,7 +59,7 @@
 	url = https://github.com/aristanetworks/sonic
 [submodule "platform/mellanox/hw-management/hw-mgmt"]
 	path = platform/mellanox/hw-management/hw-mgmt
-	url = https://github.com/Mellanox/hw-mgmt/
+	url = https://github.com/Mellanox/hw-mgmt
 [submodule "src/redis-dump-load"]
 	path = src/redis-dump-load
 	url = https://github.com/p/redis-dump-load.git