[BUGFIX] LocalDriver->calculateBasePath doesn't properly sanitize

The method "calculateBasePath" of Resource/Driver/LocalDriver.php
does not properly sanitize the passed value.

It misses to use the return value of "canonicalizeAndCheckFilePath".

Change-Id: I8f2561e4a3b432d869ba7931f3ce5877714699c0
Resolves: #61295
Releases: 6.3, 6.2
Reviewed-on: http://review.typo3.org/32548
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>
Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Frans Saris <franssaris@gmail.com>