Carve out the error_count increment into a separate function
edac_inc_csrow(). This better separates code and reduces the indentation
level.

Implementation note: The function edac_inc_csrow() counts the same
as before, ->ce_count is only incremented if row >= 0. This is esp.
true for the case of (!e->enable_per_layer_report). Here, a DIMM was
not found, variable row still has a value of -1 and ->ce_count is not
incremented.

 [ bp: Massage commit message. ]
Signed-off-by: NRobert Richter <rrichter@marvell.com>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Reviewed-by: NMauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: NAristeu Rozanski <aris@redhat.com>
Link: https://lkml.kernel.org/r/20200214141757.8976-1-rrichter@marvell.com