xm: Extend width of ID in 'xm list' to 5 digits.

xm: Extend width of ID in 'xm list' to 5 digits.

The Domain ID is currently expected to fit in 3 digits.

When doing extensive testing on SAVE/RESTORE I can easily get ID's
into the 4-digit range, which makes some of the formatting to get out
of sync. Extend the width to 5 digits (and change some %-ns to %ns, as
the ID for example is right justified, %-ns is left-justified, which
didn't look too good).

Signed-off-by: Mats Petersson <mats.petersson@amd.com>