HID: intel-ish-hid: Fix build error for COMPILE_TEST

kernel test robot reported build error due to a pointer type mismatch:

  .../ishtp/loader.c:172:8: error: incompatible pointer types passing
  '__le64 *' (aka 'unsigned long long *') to parameter of type
  'dma_addr_t *' (aka 'unsigned int *')

The issue arises because the driver, which is primarily intended for
x86-64, is also built for i386 when COMPILE_TEST is enabled.

Resolve type mismatch by using a temporary dma_addr_t variable to hold
the DMA address. Populate this temporary variable in dma_alloc_coherent()
function, and then convert and store the address in the
fragment->fragment_tbl[i].ddr_adrs field in the correct format.
Similarly, convert the ddr_adrs field back to dma_addr_t when freeing
the DMA buffer with dma_free_coherent().

Fixes: 579a267e ("HID: intel-ish-hid: Implement loading firmware from host feature")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202405201313.SAStVPrT-lkp@intel.com/


Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>