Revert "firewire: ohci: use common macro to interpret be32 data in le32 buffer"

Revert "firewire: ohci: use common macro to interpret be32 data in le32 buffer"

This reverts commit f26a38e61c03fdfacb6b596e1daf665cf4526a60, since it
causes the following sparse warnings:

sparse warnings: (new ones prefixed by >>)
>> drivers/firewire/ohci.c:891:23: sparse: sparse: cast to restricted __be32
>> drivers/firewire/ohci.c:891:23: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:892:23: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:892:23: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:893:23: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:893:23: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:905:31: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:905:31: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:914:31: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:914:31: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:939:18: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:939:18: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:2033:23: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:2033:23: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:2037:27: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:2037:27: sparse: sparse: cast from restricted __le32
   drivers/firewire/ohci.c:2038:27: sparse: sparse: cast to restricted __be32
   drivers/firewire/ohci.c:2038:27: sparse: sparse: cast from restricted __le32

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407050656.03bw1YXA-lkp@intel.com/
Link: https://lore.kernel.org/r/20240707134523.11784-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>