Add support for SDRAM registers printing to bct_dump.

Add support for SDRAM registers printing to bct_dump.

This adds human readable output for RAM controller registers default
values stored in a BCT file.

BUG=None
TEST=bct_dump burn-u-boot/bct/default.bct and check EMC_CFG value.

This CL depends on http://codereview.chromium.org/6625006/

Change-Id: I4451d17c144d0273d375e490511e2534accd6de1

[robotboy, 2011-03-04 18:10:54]

LGTM, after addressing comments below.

Thanks,
    Anton

http://codereview.chromium.org/6626016/diff/1/bct_dump.c
File bct_dump.c (right):

http://codereview.chromium.org/6626016/diff/1/bct_dump.c#newcode434
bct_dump.c:434: for (j = 0; j < sizeof(sdram_values) / sizeof(sdram_values[0]);
++j) {
Please wrap to 80-columns.

http://codereview.chromium.org/6626016/diff/1/bct_dump.c#newcode439
bct_dump.c:439: printf(sdram_values[j].message, e == 0 ? data : 0x0bad0bad);
For consistency let's leave this as -1 as well.  I am working on a rewrite of
the way bct_dump handles printing values.  The result will be that if a value
fails to read we'll get something more like <error> instead of 0xffffffff which
could conceivably be a valid value.