openssh: reindent Package/<name> metadata blocks to 2 spaces

openssh: reindent Package/<name> metadata blocks to 2 spaces

FormalityCheck expects package metadata lines inside 'define Package/<name>'
blocks to be indented with exactly 2 spaces. Historically this file used
tabs, which triggers the audit on any newly-touched line. Convert all
metadata lines in the plain 'define Package/<name>' blocks to 2 spaces so
future edits don't repeatedly trip the check.

No functional change: recipe blocks (/install, /conffiles, /description)
retain their tab indentation as required by make.

Signed-off-by: Michael Pfeifroth <redacted>