[PATCH] nvram_print_partitions cosmetic fixup

This is a cosmetic fixup.   When printing the nvram partition table, the
first couple entries have a shorter 'index' value than the others, so
table is a bit askew.   This change makes the table look pretty.
Tested on pseries and g5.   Footnote: yes, this table is normally hidden
behind a DEBUG_NVRAM #define.

Signed-off-by: Will Schmidt <willschm@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>