northbridge/amd/gx2/raminit.c Halt func needs noreturn attrib

Missing "__attribute__((noreturn))" on halt function. This sync's the
implementation to be the same as that of amd/lx thereby avoiding
compiler warnings.

Change-Id: Iead16125805eb36ff875fba767cf8d4e5aa86715
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/6157
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
1 file changed