drm/i915/xe2lpd: Load DMC

Load DMC for Xe2LPD. The value 0x8000 is the maximum payload size for
any Xe2LPD DMC firmware.

v2:
  - s/XE2LPD_MAX_FW_SIZE/XE2LPD_DMC_MAX_FW_SIZE/. (Lucas)

Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240312163639.172321-8-gustavo.sousa@intel.com


Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>