[coreboot] Patch merged into master: e89640b Add SSE3 dependent code

the following patch was just integrated into master:
commit e89640b4b4ed43acc8f8e617811983ddb64ff0fe
Author: efdesign98 
Date:   Wed Jul 20 20:11:46 2011 -0600

Add SSE3 dependent code

This change separates out changes that were initially found
    in the commit for XHCI and AHCI changes to "arch/x86/Makefile.
    inc".  It also corrects a comment.  The SSE3 dependent code
    adds a pair of CR4 access functions and a blob of code that
    re-sets CR4.OSFXSR and CR4.OSXMMEXCPT.

Change-Id: Id97256978da81589d97dcae97981a049101b5258
    Signed-off-by: Frank Vibrans 
    Signed-off-by: efdesign98

See http://review.coreboot.org/113 for details.

-gerrit