GCC4.6: Squash warnings in ddr[123]_dimm_params.c

ddr1_dimm_params.c: In function 'compute_ranksize':
ddr1_dimm_params.c:44: warning: format '%08x' expects type 'unsigned int', but
argument 2 has type 'long long unsigned int'

ddr2_dimm_params.c: In function 'compute_ranksize':
ddr2_dimm_params.c:43: warning: format '%08x' expects type 'unsigned int', but
argument 2 has type 'long long unsigned int'

ddr3_dimm_params.c: In function 'compute_ranksize':
ddr3_dimm_params.c:74: warning: format '%16lx' expects type 'long unsigned int',
but argument 2 has type 'long long unsigned int'

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>