sfc: Remove unnecessary inclusion of <asm/io.h>, prompted by checkpatch
sfc: Remove unnecessary inclusion of <asm/io.h>, prompted by checkpatch

Fix the warning:

WARNING: Use #include <linux/io.h> instead of <asm/io.h>

There is no need for selftest.c to include the file at all.

Signed-off-by: Ben Hutchings <0672176982fbc629cc374f31a7a45ae1671abf90@solarflare.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas