`make clean` should clean up fips provider shared object.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17556)
(cherry picked from commit 45036df45048c6498efa49d3572869830d05df45)