Modified .gitmodule to refer to polycube-network

Author: sebymiano

.gitmodules

@@ -1,8 +1,8 @@
 [submodule "src/libs/bcc"]
 	path = src/libs/bcc
-	url = https://github.com/sebymiano/bcc.git
+	url = https://github.com/polycube-network/bcc.git
 	ignore = untracked
-	branch = bpfct
+	branch = polycube
 [submodule "src/components/iptables/iptables"]
 	path = src/components/iptables/iptables
 	url = https://github.com/polycube-network/iptables.git