10246 fix apic_allocate_irq() indentation

*** 20,30 ****
   */
  /*
   * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright 2016 Nexenta Systems, Inc.
   * Copyright (c) 2017 by Delphix. All rights reserved.
!  * Copyright (c) 2018, Joyent, Inc.
   */
  /*
   * Copyright (c) 2010, Intel Corporation.
   * All rights reserved.
   */
--- 20,30 ----
   */
  /*
   * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright 2016 Nexenta Systems, Inc.
   * Copyright (c) 2017 by Delphix. All rights reserved.
!  * Copyright (c) 2019, Joyent, Inc.
   */
  /*
   * Copyright (c) 2010, Intel Corporation.
   * All rights reserved.
   */
*** 1602,1612 ****
  int
  apic_allocate_irq(int irq)
  {
          int     freeirq, i;
  
!         if ((freeirq = apic_find_free_irq(irq, (APIC_RESV_IRQ - 1))) == -1)
                  if ((freeirq = apic_find_free_irq(APIC_FIRST_FREE_IRQ,
                      (irq - 1))) == -1) {
                          /*
                           * if BIOS really defines every single irq in the mps
                           * table, then don't worry about conflicting with
--- 1602,1612 ----
  int
  apic_allocate_irq(int irq)
  {
          int     freeirq, i;
  
!         if ((freeirq = apic_find_free_irq(irq, (APIC_RESV_IRQ - 1))) == -1) {
                  if ((freeirq = apic_find_free_irq(APIC_FIRST_FREE_IRQ,
                      (irq - 1))) == -1) {
                          /*
                           * if BIOS really defines every single irq in the mps
                           * table, then don't worry about conflicting with
*** 1618,1633 ****
--- 1618,1636 ----
                                      FREE_INDEX) {
                                          freeirq = i;
                                          break;
                                  }
                          }
+ 
                          if (freeirq == -1) {
                                  /* This shouldn't happen, but just in case */
                                  cmn_err(CE_WARN, "%s: NO available IRQ", psm_name);
                                  return (-1);
                          }
                  }
+         }
+ 
          if (apic_irq_table[freeirq] == NULL) {
                  apic_irq_table[freeirq] =
                      kmem_zalloc(sizeof (apic_irq_t), KM_NOSLEEP);
                  if (apic_irq_table[freeirq] == NULL) {
                          cmn_err(CE_WARN, "%s: NO memory to allocate IRQ",