alter database set location 'xxx' command should not check for user's admin privilege on hdfs path

alter database set location 'hdfs://xxxx' command fails with the following error:

FAILED: HiveAccessControlException Permission denied: Principal [name=admin, type=USER] does not have following privileges for operation ALTERDATABASE_LOCATION [[ADMIN PRIVILEGE] on Object [type=DFS_URI, name=hdfs://xxxx]]

It checks if the user has the admin privilege on the location path.  However only OWNER_PRIV, INSERT_NOGRANT, DELETE_NOGRANT or SELECT_NOGRANT can be returned  from getPrivilegesFromFS() function call. i.e. There's no mapping from admin privilege to the hdfs access privilege. So I suggest using INS_SEL_DEL_NOGRANT_AR instead of admin privilege checking. Patch is attached for review, thanks.