Staging: otus: Fix ZM_SEQ_DEBUG macro for no-debug case

tcp_seq is only initialised in case where ZM_ENABLE_PERFORMANCE_EVALUATION
is defined. So move the call to ZM_SEQ_DEBUG() and the decleration of
tcp_seq in there too.  This allows ZM_SEQ_DEBUG() to be removed from the
non-ZM_ENABLE_PERFORMANCE_EVALUATION case in the header file.

This resolves several compile warnings for the
non-ZM_ENABLE_PERFORMANCE_EVALUATION case.
However, the ZM_ENABLE_PERFORMANCE_EVALUATION
case seems to be completely broken.

$ gcc (Debian 4.4.2-8) 4.4.2
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ make
...
drivers/staging/otus/80211core/cagg.c: In function 'zfAggRxEnabled':
drivers/staging/otus/80211core/cagg.c:1872: warning: left-hand operand of
comma expression has no effect
drivers/staging/otus/80211core/cagg.c:1872: warning: left-hand operand of
comma expression has no effect
drivers/staging/otus/80211core/cagg.c:1872: warning: statement with no
effect
...

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>