Patch merged into coreboot/master: 6b65f0d mips: Simplify architecture specific Makefile.inc

the following patch was just integrated into master:
commit 6b65f0d8bd04041c24c1e9da8199c6e484192b5f
Author: Patrick Georgi 
Date:   Mon Mar 30 13:40:29 2015 +0200

mips: Simplify architecture specific Makefile.inc

The mips Makefile was inherited from x86 and so included lots
    of stuff that is necessary on x86 but nowhere else.
    That cruft is now gone.

It also adopts the non-x86 approach of handling linker scripts,
    hardcoding an include to ldoptions there, instead of manual
    concatenation (of just one file plus options).

This is inspired by the commit listed below, but rewritten to match
    upstream, and split in smaller pieces to keep intent clear.

Change-Id: Ibf0c7096f9425572d8f83837aa6a253fd91e212c
    Signed-off-by: Patrick Georgi 
    Based-On-Change-Id: I50af7dacf616e0f8ff4c43f4acc679089ad7022b
    Based-On-Signed-off-by: Julius Werner 
    Based-On-Reviewed-on: https://chromium-review.googlesource.com/219170
    Reviewed-on: http://review.coreboot.org/9163
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin 
    Reviewed-by: Paul Menzel

See http://review.coreboot.org/9163 for details.

-gerrit