x86/apic: Change the lapic name in deadline mode

So that we can more easily see in what mode the lapic timer operates.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: kevin.b.stanton@intel.com
Link: http://lkml.kernel.org/r/20170531155305.989808008@infradead.org


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>