Script fix in ipmi SOL script

Changed Should Match to Should Match Regexp in one of the keyword
So that it will match the pattern given in variable
${SOL_BIOS_OUTPUT}  and ${SOL_LOGIN_OUTPUT}

Tested:
Ran robot ipmi/test_ipmi_sol.robot

Change-Id: I470b91e4b0b8c600936fa2b93c06a34c8eb968e3
Signed-off-by: Nagarjun B  <nagarjunb@ami.com>
diff --git a/ipmi/test_ipmi_sol.robot b/ipmi/test_ipmi_sol.robot
index 3beb9d8..b4659c3 100644
--- a/ipmi/test_ipmi_sol.robot
+++ b/ipmi/test_ipmi_sol.robot
@@ -303,13 +303,14 @@
 Check IPMI SOL Output Content
     [Documentation]  Check if SOL has given content.
     [Arguments]  ${data}  ${file_path}=${IPMI_SOL_LOG_FILE}
+
     # Description of argument(s):
     # data       Content which need to be checked(e.g. Petitboot, ISTEP).
     # file_path  The file path on the local machine to check SOL content.
     #            By default it check SOL content from log/sol_<BMC_IP>.
 
     ${output}=  OperatingSystem.Get File  ${file_path}  encoding_errors=ignore
-    Should Contain  ${output}  ${data}  case_insensitive=True
+    Should Match Regexp  ${output}  ${data}  case_insensitive=True
 
 
 Verify SOL Setting