risugen_common.pm: Fix broken $bytecount syntax again

Commit e2fc2609b29c00c wasn't quite correct; exporting a
'my $foo' variable works syntactically but creates a different
variable in the using module to the one in the common module,
causing 'uninitialized variable' warnings at runtime. Instead
we need to create a package variable with 'our $foo'.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/risugen_common.pm b/risugen_common.pm
index 4e9301e..71ee996 100644
--- a/risugen_common.pm
+++ b/risugen_common.pm
@@ -29,7 +29,7 @@ BEGIN {
                    dump_insn_details);
 }
 
-my $bytecount;
+our $bytecount;
 
 my $bigendian = 0;