[kmac] Add HintByteData for packer in MSGFIFO
[kmac] Add HintByteData for packer in MSGFIFO

This commit adds the compile-time parameter of prim_packer to turn on
ByteData. The packer checks the continuity of the input mask/ output
mask if this parameter is non-zero.

Signed-off-by: Eunchan Kim <cb7bc7ceb22698f298c67faa994fd9ddf3cab298@opentitan.org>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan