util/cbmem: Fix format string in cbmem.c

Use PRIx64 to print a u64 instead of "llx". Fixes the following error:

cbmem.c: In function 'parse_cbtable':
cbmem.c:135:2: error: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'u64' [-Werror=format=]

Change-Id: Ibc2bf8597cb86db5b2e71fba77ec837a08c5e3d4
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/3301
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed