OS FFDC for all linux distributions

This commit contains the following ffdc functions that will be run on all linux distros:
OS_msglog
OS_cpufrequency
OS_dmesg
OS_boot

Later I will add functions for specific linux distros (i.e. ubuntu, rhel)

Change-Id: I7460459e2c42818b8322f0d88d76a5d0e7beb524
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/lib/openbmc_ffdc.robot b/lib/openbmc_ffdc.robot
index c9440b8..1f7caff 100755
--- a/lib/openbmc_ffdc.robot
+++ b/lib/openbmc_ffdc.robot
@@ -14,6 +14,10 @@
 ...                │       ├── 20160909102538035251_BMC_led
 ...                │       ├── 20160909102538035251_BMC_record_log
 ...                │       ├── 20160909102538035251_BMC_sensor_list
+...                │       ├── 20160909102538035251_OS_dmesg
+...                │       ├── 20160909102538035251_OS_msglog
+...                │       ├── 20160909102538035251_OS_cpufrequency
+...                │       ├── 20160909102538035251_OS_boot
 ...                │       └── 20160909102538035251_ffdc_report.txt
 ...                └── test_history.txt