staging: ccree: rename func for readability

Rename the insanely long ssi_ahash_get_larval_digest_sram_addr() func
to cc_larval_digest_addr() for better code readability

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>