habanalabs: rename mmu_write() to mmu_asid_va_write()

The function name conflicts with a static inline function in
arch/m68k/include/asm/mcfmmu.h

Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>