Fixes the following sparse warning:

  arch/x86/mm/tlb.c:38:6: warning: symbol 'clear_asid_other' was not declared. Should it be static?
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dave.hansen@linux.intel.com
Cc: kirill.shutemov@linux.intel.com
Cc: tim.c.chen@linux.intel.com
Link: http://lkml.kernel.org/r/1532159732-22939-1-git-send-email-zhongjiang@huawei.comSigned-off-by: Ingo Molnar <mingo@kernel.org>