!1059 kTaskNumPerHcclNode br

From: @dimitri_rose
Reviewed-by: @xchu42,@ji_chen
Signed-off-by: @ji_chen

ge/graph/build/stream_allocator.cc

@@ -35,7 +35,7 @@ using std::vector;
 
 namespace {
 const int64_t kTaskNumPerNormalNode = 3;
-const int64_t kTaskNumPerHcclNode = 200;
+const int64_t kTaskNumPerHcclNode = 245;
 const char *const kTrueStr = "true";
 const char *const kFalseStr = "false";