arch: um: drivers: Kconfig: pedantic formatting

[ Upstream commit 75f24f78721048a271e2e50a563f51bcfd6f5c1c ]

Formatting of Kconfig files doesn't look so pretty, so just
take damp cloth and clean it up. Just indention changes.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
Stable-dep-of: db4bfcba7bb8 ("um: Fix hostaudio build errors")
Signed-off-by: Sasha Levin <sashal@kernel.org>