Merge r187418 from projects/mips to head by hand:

r187418 | gonzo | 2009-01-18 19:37:10 -0700 (Sun, 18 Jan 2009) | 4 lines
- Add trampoline stuff for bootloaders that do not support ELF
- Replace arm'ish KERNPHYSADDR/KERNVIRTADDR with
    KERNLOADADDR/TRAMPLOADADDR and clean configs

sys/conf/ldscript.mips

@@ -43,7 +43,7 @@ PROVIDE (_DYNAMIC = 0);
 SECTIONS
 {
   /* Read-only sections, merged into text segment: */
-  . = 0x80100000 + SIZEOF_HEADERS;
+  . = KERNLOADADDR + SIZEOF_HEADERS;
   .interp     : { *(.interp) 	}
   .hash          : { *(.hash)		}
   .dynsym        : { *(.dynsym)		}