xen/ELF: Fix ELF32 PRI formatters

xen/ELF: Fix ELF32 PRI formatters

It is rude to hide width formatting inside a PRI* macro, doubly so when it's
only in one bitness of the macro.

However its fully buggy when all the users use %#"PRI because then it expands
to the common trap of %#08x which does not do what the author intends.

Switch the 32bit ELF PRI formatters to use plain integer PRI's, just like on
the 64bit side already.  No practical change.

Fixes: 7597fabca76e ("livepatch: Include sizes when an mismatch occurs")
Fixes: 380b229634f8 ("xsplice: Implement payload loading")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Ross Lagerwall <ross.lagerwall@citrix.com>