[ot] hw/opentitan: ot_darjeeling, ot_earlgrey: connect LC DEBUG to SRAM

Connect the lifecycle controller's broadcast `LC_HW_DEBUG_EN` signal to
each SRAM controller in both tops, to match the ifetch/execution
enablement conditions that are specified in the RTL.

Signed-off-by: Alex Jones <[email protected]>

Author: AlexJones0

hw/riscv/ot_darjeeling.c

@@ -1500,8 +1500,13 @@ static const IbexDeviceDef ot_dj_soc_devices[] = {
     /* IRQ splitters */
     [OT_DJ_SOC_SPLITTER_LC_HW_DEBUG] = {
         .type = TYPE_SPLIT_IRQ,
+        .gpio = IBEXGPIOCONNDEFS(
+            OT_DJ_SOC_S2D(0, SRAM_CTRL_MAIN, OT_SRAM_CTRL_HW_DEBUG_EN, 0),
+            OT_DJ_SOC_S2D(1, SRAM_CTRL_MBOX, OT_SRAM_CTRL_HW_DEBUG_EN, 0),
+            OT_DJ_SOC_S2D(2, SRAM_CTRL_RET, OT_SRAM_CTRL_HW_DEBUG_EN, 0)
+        ),
         .prop = IBEXDEVICEPROPDEFS(
-            IBEX_DEV_UINT_PROP("num-lines", 1u) // to be changed
+            IBEX_DEV_UINT_PROP("num-lines", 3u) /* @todo: to be changed */
         )
     },
     [OT_DJ_SOC_SPLITTER_LC_ESCALATE] = {
@@ -1511,7 +1516,7 @@ static const IbexDeviceDef ot_dj_soc_devices[] = {
                                   OT_OTP_LC_ESCALATE_EN)
         ),
         .prop = IBEXDEVICEPROPDEFS(
-            IBEX_DEV_UINT_PROP("num-lines", 1u) // to be changed
+            IBEX_DEV_UINT_PROP("num-lines", 1u) /* @todo to be changed */
         )
     }
     /* clang-format on */

hw/riscv/ot_earlgrey.c

@@ -1470,8 +1470,12 @@ static const IbexDeviceDef ot_eg_soc_devices[] = {
     /* IRQ splitters */
     [OT_EG_SOC_SPLITTER_LC_HW_DEBUG] = {
         .type = TYPE_SPLIT_IRQ,
+        .gpio = IBEXGPIOCONNDEFS(
+            OT_EG_SOC_S2D(0, SRAM_MAIN_CTRL, OT_SRAM_CTRL_HW_DEBUG_EN, 0),
+            OT_EG_SOC_S2D(1, SRAM_RET_CTRL, OT_SRAM_CTRL_HW_DEBUG_EN, 0)
+        ),
         .prop = IBEXDEVICEPROPDEFS(
-            IBEX_DEV_UINT_PROP("num-lines", 1u) /* @todo to be changed */
+            IBEX_DEV_UINT_PROP("num-lines", 2u) /* @todo to be changed */
         )
     },
     [OT_EG_SOC_SPLITTER_LC_ESCALATE] = {