EDAC: Fix indentation issues in several EDAC drivers

Replace spaces with tabs and insert missing indentation.

 [ bp: Rewrite commit message. ]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: "Arvind R." <arvino55@gmail.com>
CC: Mark Gross <mark.gross@intel.com>
CC: Mauro Carvalho Chehab <mchehab@kernel.org>
CC: Ranganathan Desikan <ravi@jetztechnologies.com>
CC: kernel-janitors@vger.kernel.org
CC: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20181109133757.21471-1-colin.king@canonical.com