OS-4300 increase RT signal count
Reviewed by: Robert Mustacchi <rm@joyent.com>

*** 20,29 ****
--- 20,30 ----
   */
  
  /*
   * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
+  * Copyright 2015, Joyent, Inc.
   */
  
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*        All Rights Reserved   */
  
*** 156,167 ****
  #if defined(__EXTENSIONS__) || !defined(_XPG4_2)
  /*
   * use of these symbols by applications is injurious
   *      to binary compatibility
   */
! #define NSIG    74      /* valid signals range from 1 to NSIG-1 */
! #define MAXSIG  73      /* size of u_signal[], NSIG-1 <= MAXSIG */
  #endif /* defined(__EXTENSIONS__) || !defined(_XPG4_2) */
  
  #define MINSIGSTKSZ     2048
  #define SIGSTKSZ        8192
  
--- 157,168 ----
  #if defined(__EXTENSIONS__) || !defined(_XPG4_2)
  /*
   * use of these symbols by applications is injurious
   *      to binary compatibility
   */
! #define NSIG    75      /* valid signals range from 1 to NSIG-1 */
! #define MAXSIG  74      /* size of u_signal[], NSIG-1 <= MAXSIG */
  #endif /* defined(__EXTENSIONS__) || !defined(_XPG4_2) */
  
  #define MINSIGSTKSZ     2048
  #define SIGSTKSZ        8192