package/*/Config.in.host: fix help text check-package warnings

This commit fixes the warnings reported by check-package on the help
text of all package Config.in.host files, related to the formatting of
the help text: should start with a tab, then 2 spaces, then at most 62
characters.

Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>