BUG/MINOR: spoe: correction of setting bits for analyzer

When a SPOE filter starts the response analyze, the wrong flag is tested on the
pre_analyzers bit field. AN_RES_INSPECT must be tested instead of
SPOE_EV_ON_TCP_RSP.

This patch must be backported to all versions with the SPOE support, i.e as far
as 1.7.
1 file changed