memtest86+: Change escape characters in strings into "\x1b"

Change-Id: I32809e6b2cad5265cb8fc768a632097b12c6c1d8
Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Reviewed-on: https://review.coreboot.org/13908
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2 files changed