platform/x86: amd-pmc: Fix undefined reference to __udivdi3

It was reported that on i386 config

------
on i386:

ld: drivers/platform/x86/amd-pmc.o: in function `s0ix_stats_show':
amd-pmc.c:(.text+0x100): undefined reference to `__udivdi3'
-------

The reason for this is that 64-bit integer division is not supported
on 32-bit architecture. Use do_div macro to fix this.

Fixes: b9a4fa69 ("platform/x86: amd-pmc: Add support for logging s0ix counters")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org> # and build-tested
Link: https://lore.kernel.org/r/20210716153802.2929670-1-Shyam-sundar.S-k@amd.com


Signed-off-by: Hans de Goede <hdegoede@redhat.com>