How to avoid DROP TABLE for a specific MySQL table
prevent DROP TABLE from being executed ONLY FOR THIS TABLE


But dropping some another table in the same database must be available? 

If so the task cannot be solved using MySQL privilege system. Because some privilege granted to or revoked from some object affects on all its subobjects. Revoking DROP on some database revokes it for all tables in this database. No separate table  privilege.

But the task can be solved using FOREIGN KEY subsystem. 

Create some fake table. Set some field in this table as referenced to the table in question. And server will forbid your table drop until this fake table (or FK from it to your table) drop.