x86: Convert per-cpu counter icr_read_retry_count into a member of irq_stat
LAPIC related statistics are grouped inside the per-cpu
structure irq_stat, so there is no need for icr_read_retry_count
to be a standalone per-cpu variable.
This patch moves icr_read_retry_count to where it belongs.
Suggested-y: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Cc: Jörn Engel <joern@logfs.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>