The function name of cpumask_clear_cpu was not correct. Fortunately
nobody uses that code with hotplug yet :-)
Reported-by: NJin Qing <b24347@freescale.com>
Signed-off-by: NLi Yang <leoli@freescale.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>