Create REST URL file with BMC firmware version.

Filename contains BMC firmware version before and after
code update.

Resolves openbmc/openbmc-test-automation#709

Change-Id: Iefb5113843cd8d733e626ae7de6d559b7905d7cc
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/lib/utils.robot b/lib/utils.robot
index 9e5b5ce..a88879b 100755
--- a/lib/utils.robot
+++ b/lib/utils.robot
@@ -962,3 +962,14 @@
 
     ${state}=  Read Attribute  ${LED_GROUPS_URI}${led_name}  Asserted
     [Return]  ${state}
+
+
+Get BMC Version
+    [Documentation]  Returns BMC version from /etc/os-release.
+    ...              e.g. "v1.99.6-141-ge662190"
+
+    Open Connection And Log In
+    ${cmd}=  Set Variable  grep ^VERSION_ID= /etc/os-release | cut -f 2 -d '='
+    ${output}=  Execute Command On BMC  ${cmd}
+    [Return]  ${output}
+