meta-ampere: mtmitchell: Support host consoles logger

This commit supports phosphor-hostlogger in STREAM mode, to forward
the byte stream from obmc-console to rsyslog via the imuxsock module.
The logs can be obtained in /var/log/. The logs are rotated by
logrotate. The size threshold of cpu console is 256KB and the others are
64KB. Each log is polled every 1 minute to check if its file size
exceeds the threshold to rotate it to the new file. Each console can be
saved in up to 2 log files.

Tested (CPU console):

1. Change the mux of CPU console to BMC
    $ ampere_uartmux_ctrl.sh 1 2
2. Connect to CPU SOL console
     $ ssh root@<BMC_IP> -p 2200
3. Execute commands in the CPU SOL console
    => The console output on CPU SOL console will all be logged to
       /var/log/obmc-console-cpu.log
    => The log will be rotated to /var/log/obmc-console-cpu.log.1 if the
        original log file size exceeds 256KB every 1min poll

Signed-off-by: Chau Ly <chaul@amperecomputing.com>
Change-Id: I336bde09c4ef61ea68e05bef2c0b4e4298ea7959
diff --git a/meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console_%.bbappend b/meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console_%.bbappend
index 2e0ac98..2b7673e 100644
--- a/meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console_%.bbappend
+++ b/meta-ampere/meta-mitchell/recipes-phosphor/console/obmc-console_%.bbappend
@@ -11,7 +11,7 @@
                                "
 
 # Declare port spcific conf and service files
-HOST_CONSOLE_TTY = "ttyS0"
+HOST_CONSOLE_TTY = "ttyS0 ttyS1 ttyS2 ttyS3 ttyS7 ttyS8"
 
 CONSOLE_CONF_FMT = "file://server.{0}.conf"
 SRC_URI += "${@compose_list(d, 'CONSOLE_CONF_FMT', 'HOST_CONSOLE_TTY')}"