power: supply: power_supply_show_enum_with_available(): Replace spaces with '_'

power: supply: power_supply_show_enum_with_available(): Replace spaces with '_'

Some enum style power-supply properties have text-values / labels for some
of the enum values containing a space, e.g. "Long Life" for
POWER_SUPPLY_CHARGE_TYPE_LONGLIFE.

Make power_supply_show_enum_with_available() replace these spaces with
'_' when showing the available text-values. After this the output for
a battery which supports "Long Life" will be e.g.:

Fast [Standard] Long_Life

or:

Fast Standard [Long_Life]

Modify power_supply_store_property() to accept both the original text-value
with space and the alternative value with the spaces replaced by '_'.
This allows users to write the value with '_' after seeing this on reading
the property.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20241209204051.8786-2-hdegoede@redhat.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>