MAINTAINERS: grab build system responsibility

Since nobody else stepped up, I hereby claim responsibility for the
build system.

Change-Id: I580b906d15fc2f049f0072e7b4608b1f19db83ab
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/10277
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed