iwlwifi: yoyo: support for DBGC4 for dram

Add DBGC4 memory for debug handling in driver which will be created,
freed and collected from the FW in case of crash.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204130722.488268ffb2a6.I4fd9ee9dc43d04953a640e19ecac7575ad34fe94@changeid


Signed-off-by: Luca Coelho <luciano.coelho@intel.com>