ANDROID: fips140: remove in-place updating of live algorithms

The lab has confirmed that it is actually fine for users to keep using
non-FIPS code after the module has loaded if they were already using it
beforehand.  So remove the code that tried to prevent this by updating
live algorithms in-place.  Similarly, remove the call to
synchronize_rcu_tasks() which no longer has any purpose.

We still need to move the live algorithms to a private list, so keep
doing that.  Keep appending "+orig" to cra_name as well, and start doing
the same for cra_driver_name too.

Bug: 188620248
Change-Id: I29c9faec7d7314484a03f9729924b2f892552c7c
Signed-off-by: Eric Biggers <ebiggers@google.com>
(cherry picked from commit 54aecb72)