[top/aon_timer] Add missing LC signal connection

Signed-off-by: Michael Schaffner <msf@opentitan.org>
diff --git a/hw/top_earlgrey/data/top_earlgrey.hjson b/hw/top_earlgrey/data/top_earlgrey.hjson
index 3b4fec9..5ba2c58 100644
--- a/hw/top_earlgrey/data/top_earlgrey.hjson
+++ b/hw/top_earlgrey/data/top_earlgrey.hjson
@@ -938,7 +938,8 @@
       'lc_ctrl.lc_escalate_en'     : ['aes.lc_escalate_en',
                                       'otp_ctrl.lc_escalate_en',
                                       'sram_ctrl_main.lc_escalate_en',
-                                      'sram_ctrl_ret_aon.lc_escalate_en'],
+                                      'sram_ctrl_ret_aon.lc_escalate_en',
+                                      'aon_timer_aon.lc_escalate_en'],
 
       'lc_ctrl.lc_check_byp_en'    : ['otp_ctrl.lc_check_byp_en'],
       'lc_ctrl.lc_clk_byp_req'     : ['clkmgr_aon.lc_clk_byp_req'],