dm: Don't warn if IMA_DISABLE_HTABLE is not enabled

dm: Don't warn if IMA_DISABLE_HTABLE is not enabled

Commit f1cd6cb24b6b ("dm ima: add a warning in dm_init if duplicate ima
events are not measured") added a warning message if CONFIG_IMA is
enabled but CONFIG_IMA_DISABLE_HTABLE is not to inform users. When
enabling CONFIG_IMA, CONFIG_IMA_DISABLE_HTABLE is disabled by default
and so warning is seen. Therefore, it seems more appropriate to make
this an INFO level message than warning. If this truly is a warning,
then maybe CONFIG_IMA_DISABLE_HTABLE should default to y if CONFIG_IMA
is enabled.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>