libxl: Fix libxl__device_pci_reset error messages

libxl: Fix libxl__device_pci_reset error messages

Don't use the LOG*D macros.  They expect a domid, but "domain" here is
the PCI domain.  Hence it is inappropriate for this use.

Make the write error messages uniform with LOGE.  errno has the
interesting information while rc is just -1.  Drop printing rc and use
LOGE to print errno as text.

The interesting part of a failed write to do_flr is that PCI BDF, so
print that.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>