[TYPO3-commerce] FYI: Cleanup: Fixed deprecated method call get_atrribute_matrix (again)

[Christian Kuhn]

Patch [1] was committed to commerce trunk, rev. 30581

Type: no-brainer

Branches: trunk

Forge issue ID: None for a no-brainer

Problem: Fix calls to deprecated method get_atrribute_matrix()

Solution: Use get_attribute_matrix() instead (r -> t)

Notes:
This was already committed by me with rev. 30252, but was reverted by 
mistake in rev. 30257 again.

Regards
Christian

[1] http://forge.typo3.org/repositories/diff/extension-commerce?rev=30581