EDAC: Remove EDAC_MM_EDAC

Move all the EDAC core functionality behind CONFIG_EDAC and get rid of
that indirection. Update defconfigs which had it.

While at it, fix dependencies such that EDAC depends on RAS for the
tracepoints.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: linux-edac@vger.kernel.org

arch/tile/configs/tilegx_defconfig

@@ -249,7 +249,6 @@ CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_EDAC=y
-CONFIG_EDAC_MM_EDAC=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_TILE=y
 CONFIG_EXT2_FS=y

arch/tile/configs/tilepro_defconfig

@@ -358,7 +358,6 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 # CONFIG_VGA_ARB is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_EDAC=y
-CONFIG_EDAC_MM_EDAC=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_TILE=y
 CONFIG_EXT2_FS=y