iwx: Fix 32-bit compilation

[olce]

Summary

• Avoid shifts wider than integer types, by wrapping the corresponding checks into '#if SIZEOF_SIZE_T > 32' blocks. 'bus_addr_t' has the same width as 'size_t' on all architectures (and this is not going to change for 32-bit architectures).
• Use appropriate printf(3) format for 'wk_keytsc'.

[olce]

(Alternative: Don't compile this on 32-bit architectures at all, if if_iwx in reality does not support those.)

[adrian]

In D55667#1273924, @olce wrote:

(Alternative: Don't compile this on 32-bit architectures at all, if if_iwx in reality does not support those.)

it doesn't? what about it doesn't support 32 bit archs?

[adrian]

sys/dev/iwx/if_iwx.c

5821

ugh if this is a hardware limitation then god i wish we could describe it somehow to busdma...