Processed: valgrind: add support for loong64

[Debian Bug Tracking System]

Processing control commands:

> block 1072148 by -1
Bug #1072148 [src:epics-base] epics-base: please add support for loong64
1072148 was not blocked by any bugs.
1072148 was not blocking any bugs.
Added blocking bug(s) of 1072148: 1072195

-- 
1072148: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1072148
1072195: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1072195
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