Patch merged into coreboot/master: 416ab38 build system: Allow defining generic rules

the following patch was just integrated into master:
commit 416ab38ea47b5f41b918292b64843e63c100e53c
Author: Patrick Georgi 
Date:   Fri Apr 3 10:19:38 2015 +0200

build system: Allow defining generic rules

Provide a mechanism to define rules that apply for a given filetype
    (.c, .asl, ...) across all classes (ramstage, ...)

Change-Id: If45c526d294e0374c32efef01f0213c6b78b1e43
    Signed-off-by: Patrick Georgi 
    Reviewed-on: http://review.coreboot.org/9286
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin 
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/9286 for details.

-gerrit