Update the ppc64 specific results to what they are.

The difference of the expected results as compared to other
platforms is

- Location 0x........ is 2 bytes inside local var "budget"
- declared at varinfo6.c:3115, in frame svn2github#2 of thread 1
+ Address 0x........ is on thread 1's stack
+ in frame svn2github#2, created by BZ2_blockSort (varinfo6.c:3107)

Should the stderr output of this testcase in the future 
match the generic output (varinfo6.stderr.exp) then this is
another incarnation of 
https://bugs.kde.org/show_bug.cgi?id=345121


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15011 a5019735-40e9-0310-863c-91ae7b9d1cf9

memcheck/tests/varinfo6.stderr.exp-ppc64

@@ -1,5 +1,5 @@
 Uninitialised byte(s) found during client check request
-   at 0x........: croak (varinfo6.c:35)
+   at 0x........: croak (varinfo6.c:34)
    by 0x........: mainSort (varinfo6.c:2999)
    by 0x........: BZ2_blockSort (varinfo6.c:3143)
    by 0x........: BZ2_compressBlock (varinfo6.c:4072)
@@ -8,9 +8,10 @@ Uninitialised byte(s) found during client check request
    by 0x........: BZ2_bzBuffToBuffCompress (varinfo6.c:5667)
    by 0x........: main (varinfo6.c:6517)
  Address 0x........ is on thread 1's stack
+ in frame #2, created by BZ2_blockSort (varinfo6.c:3107)
 
 Uninitialised byte(s) found during client check request
-   at 0x........: croak (varinfo6.c:35)
+   at 0x........: croak (varinfo6.c:34)
    by 0x........: BZ2_decompress (varinfo6.c:1699)
    by 0x........: BZ2_bzDecompress (varinfo6.c:5230)
    by 0x........: BZ2_bzBuffToBuffDecompress (varinfo6.c:5715)