nvramtool: cmos_read(): Use malloc() instead of alloca()

Fixes crash occurring when 'nvramtool -a' tried to free a prematurely
freed pointer. (Tested on x60)

malloc() is correct because the pointer is accessed outside the calling
function. The pointer is freed in the parent function list_cmos_entry().

Change-Id: I1723f09740657f0f0d9e6954bd6d11c0a3820a42
Signed-off-by: Andrew Engelbrecht <sudoman@ninthfloor.org>
Reviewed-on: http://review.coreboot.org/7620
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
tianocoreboot: Update config to make it compile

Change-Id: Ie584460529dcd342702dc00787df9c20e2ef10e7
Signed-off-by: Marcel Meißner <mm-meissner@gmx.de>
Reviewed-on: http://review.coreboot.org/7541
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
build system: remove ROMSTAGE_ELF variable

No need to keep that just because x86 has one
extra linking step.

Change-Id: Iffdbf64e0613f89070ed0dfb009379f5ca0bd3c1
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/7611
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>