staging: ccree: fix fips event irq handling build

When moving from internal for kernel FIPS infrastructure the FIPS event irq
handling code was left with the old ifdef by mistake. Fix it.

Fixes: b7e607bf ("staging: ccree: move FIPS support to kernel infrastructure")
Cc: stable@vger.kernel.org
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>