Fix small omission in mips/linux.h

[Gavin Romig-Koch]

Andreas Jaeger writes:
 > Can I commit this?
 > 
 > 2000-04-13  Andreas Jaeger  <aj@suse.de>
 > 
 > 	* config/mips/linux.h (CPP_PREDEFINES): Also define __PIC__ and
 > 	__pic__ for little endian.

Yes. 
                                     -gavin...