net/core: fix rollback handler in register_netdevice_notifier

net/core: fix rollback handler in register_netdevice_notifier

BZ: 31995

Coming from upstream commit 8f891489866ec62a87494eff3ed17c88152c32d4
"Within nested statements, the break statement terminates only the
do, for, switch, or while statement that immediately encloses it,
So replace the break with goto."

Change-Id: I5c11e8fb4424cd2418da3b14eab02a55cea8a719
Signed-off-by: RongQing.Li <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jonathan DE CESCO <jonathan.de.cesco@intel.com>
Reviewed-on: http://android.intel.com:8080/43912
Reviewed-by: Zayet, AymenX <aymenx.zayet@intel.com>
Reviewed-by: Jarzmik, Robert <robert.jarzmik@intel.com>
Reviewed-by: Regairaz, JulieX <juliex.regairaz@intel.com>
Reviewed-by: Koskinen, Ilkka <ilkka.koskinen@intel.com>
Reviewed-by: Yang, Fei <fei.yang@intel.com>
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Reviewed-by: Monroy, German <german.monroy@intel.com>
Tested-by: Ng, Cheon-woei <cheon-woei.ng@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>