fix BUG super_ocf_log - case sensitive matching prevent setting SAPHa…

[PeterPitterling]

…naFilter to all | none - all others worked

broken since [810d1d9]

[fmherschel]

I am not sure, if I want message type and filter values always to be bound to upper case. What is /was the issue behind that?

[PeterPitterling]

The old implementation used the grep "ignore" flag

echo "$shf"| grep -iq ${mtype}; search=$?

The coding is specifying the message type always UPPER case .. FLOW, INFO , etc

The new implementation used the UPPER flag ..
declare -u SAPHanaFilter='ra-act-dec-lpa'

But for the values 'all' and 'none' this was not working as the CASE statement compared it lower case to these 2 values.

This PR ensures, whatever is specified .. no matter in coding or set directly in cluster attributes will work.