accel/ivpu: Remove boot params address setting via MMIO register

accel/ivpu: Remove boot params address setting via MMIO register

The NPU 60XX uses the default boot params location specified
in the firmware image header, consistent with earlier generations.
Remove the unnecessary MMIO register write, freeing the AON register
for future use.

Fixes: 44e4c88951fa ("accel/ivpu: Implement warm boot flow for NPU6 and unify boot handling")
Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@linux.intel.com>
Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Link: https://patch.msgid.link/20260305142226.194995-1-andrzej.kacprowski@linux.intel.com