Revert .htaccess permissions back to 0644

Change Id6916fe999c0faa38de878b7b5687e7ea00901bd accidently
changed the permissions on this file, changing it back.

Change-Id: I14b68b066ed16b2221f4be52172ad7b32b86a61f
Merge "Revert .htaccess permissions back to 0644"