8626 make pcplusmp and apix warning-free
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

*** 20,29 ****
--- 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 2017 Joyent, Inc.
   */
  /*
   * Copyright (c) 2010, Intel Corporation.
   * All rights reserved.
   */
*** 328,340 ****
  int
  apic_probe_common(char *modname)
  {
          uint32_t mpct_addr, ebda_start = 0, base_mem_end;
          caddr_t biosdatap;
!         caddr_t mpct = 0;
          caddr_t fptr;
!         int     i, mpct_size, mapsize, retval = PSM_FAILURE;
          ushort_t        ebda_seg, base_mem_size;
          struct  apic_mpfps_hdr  *fpsp;
          struct  apic_mp_cnf_hdr *hdrp;
          int bypass_cpu_and_ioapics_in_mptables;
          int acpi_user_options;
--- 329,341 ----
  int
  apic_probe_common(char *modname)
  {
          uint32_t mpct_addr, ebda_start = 0, base_mem_end;
          caddr_t biosdatap;
!         caddr_t mpct = NULL;
          caddr_t fptr;
!         int     i, mpct_size = 0, mapsize, retval = PSM_FAILURE;
          ushort_t        ebda_seg, base_mem_size;
          struct  apic_mpfps_hdr  *fpsp;
          struct  apic_mp_cnf_hdr *hdrp;
          int bypass_cpu_and_ioapics_in_mptables;
          int acpi_user_options;