block/floppy: Don't use REALLY_SLOW_IO for delays

block/floppy: Don't use REALLY_SLOW_IO for delays

Instead of defining REALLY_SLOW_IO before including io.h, add the
required additional calls of native_io_delay() to the related functions
in arch/x86/include/asm/floppy.h.

Drop REALLY_SLOW_IO now too as it has no users.

  [ bp: Merge the REALLY_SLOW_IO removal into this patch. ]

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/20260119182632.596369-4-jgross@suse.com