ACPI / EC: Remove non-standard log emphasis

Remove unusual pr_info() visual emphasis introduced in ad479e7f
"ACPI / EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag".

Signed-off-by: Scot Doyle <lkml14@scotdoyle.com>
[ rjw: Change pr_info() to pr_debug() too in those places. ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>