EDAC, ghes: Remove unused argument to ghes_edac_report_mem_error()

The use of the @ghes argument was removed in a previous commit, but
function signature was not updated to reflect this.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180430213358.8319-1-mr.nuke.me@gmail.com


Signed-off-by: Borislav Petkov <bp@suse.de>