dynrbc_common.inc: increase maxit and check_ahead_periods

Required for Octave

(cherry picked from commit 38a2dcaa)

tests/occbin/model_irrcap_twoconstraints/dynrbc_common.inc

@@ -59,7 +59,7 @@ end
 % set inputs      
 
 occbin_setup(smoother_debug);
-occbin_solver(simul_debug,simul_periodic_solution,simul_periods=200,simul_maxit=200,simul_curb_retrench,simul_check_ahead_periods=200);
+occbin_solver(simul_debug,simul_periodic_solution,simul_periods=200,simul_maxit=300,simul_curb_retrench,simul_check_ahead_periods=300);
 occbin_write_regimes(filename='test',periods=[1:100]);
 
 %% Modify to plot IRFs