Revert "UBUNTU: SAUCE: UBUNTU: [Config] Disable CONFIG_PPC_DEBUG_RFI"

This reverts commit 1a7bb619.

CVE-2017-5754

BugLink: http://bugs.launchpad.net/bugs/1756121Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

debian.master/config/config.common.ubuntu

@@ -5950,7 +5950,6 @@ CONFIG_PPC_BOOK3S=y
 CONFIG_PPC_CHRP=y
 # CONFIG_PPC_DCR_MMIO is not set
 # CONFIG_PPC_DCR_NATIVE is not set
-# CONFIG_PPC_DEBUG_RFI is not set
 CONFIG_PPC_E500MC=y
 # CONFIG_PPC_EARLY_DEBUG is not set
 # CONFIG_PPC_EMULATED_STATS is not set