[flashrom] [PATCH] Use of CFLAGS and CPPFLAGS

[Sean Nelson]

Acked-by: Sean Nelson <audiohacked at gmail.com>

I had to do a google search on why we should be using CPPFLAGS instead 
of CFLAGS and found this:
http://www.gnu.org/software/hello/manual/autoconf/Preset-Output-Variables.html