s390/zcrypt: Propagate xflags argument with cca_get_info()

Propagate the xflags argument from the cca_get_info()
caller down to the lower level functions for proper
memory allocation hints.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Holger Dengler <dengler@linux.ibm.com>
Link: https://lore.kernel.org/r/20250424133619.16495-17-freude@linux.ibm.com


Signed-off-by: Heiko Carstens <hca@linux.ibm.com>