build system: Treat cmos.default as text file

It's a more easily maintainable format than a 128 byte binary blob

Change-Id: Ic9b9f53cd025b5f89a21971930fabf6592f95d67
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1867
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
1 file changed