[SERIAL]: Fix 32-bit warnings in sunzilog.c and sunsu.c

resource_size_t can be either a u64 or a u32, and we can't
really know for sure, so when printing such a value out
always use long-long printf formatting and cast the argument
to that type.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/serial/sunsu.c
Simple merge

diff --cc drivers/serial/sunzilog.c
Simple merge