[BUGFIX] saltedpasswords not installed by default

Because of folder renaming the autoloader of saltedpasswords is not
executed anymore so rsa and saltedpasswords are not installed by default.

Change-Id: Ib4c950e77048f2fcbca20d0f7bf2a0b7f9f11a0e
Fixes: #43241
Releases: 6.1, 6.0
Reviewed-on: https://review.typo3.org/19659
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn