modules: Fix compiler warning comparing 0 with bool

modules: Fix compiler warning comparing 0 with bool

modules/module-stream-restore.c: In function 'clean_up_db':
modules/module-stream-restore.c:2344:74: warning: comparison of constant '0' with boolean expression is always true [-Wbool-compare]
         pa_assert_se(entry_write(u, item->entry_name, item->entry, true) >= 0);

reported by Ubuntu gcc-6

Change-Id: Iac596a9bbf341040adc9b8012f6ea916f4787461
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Seungbae Shin <seungbae.shin@samsung.com>