Bluetooth: Controller: Add memory macro for subrating

This includes memory used for subrating in the MEMPOOL_SIZE
macro.

Signed-off-by: Adam Cavender <[email protected]>

Author: adamfc2000

subsys/bluetooth/controller/hci_driver.c

@@ -175,6 +175,12 @@ BUILD_ASSERT(!IS_ENABLED(CONFIG_BT_PERIPHERAL) ||
 #define SDC_LE_POWER_CONTROL_MEM_SIZE 0
 #endif
 
+#if defined(CONFIG_BT_CTLR_SUBRATING)
+#define SDC_SUBRATING_MEM_SIZE SDC_MEM_SUBRATING(SDC_CENTRAL_COUNT + PERIPHERAL_COUNT)
+#else
+#define SDC_SUBRATING_MEM_SIZE 0
+#endif
+
 #if defined(CONFIG_BT_CTLR_CONN_ISO)
 #define SDC_MEM_CIG SDC_MEM_PER_CIG(CONFIG_BT_CTLR_CONN_ISO_GROUPS)
 #define SDC_MEM_CIS \
@@ -242,6 +248,7 @@ BUILD_ASSERT(!IS_ENABLED(CONFIG_BT_PERIPHERAL) ||
 		      (SDC_CENTRAL_COUNT * CENTRAL_MEM_SIZE) + \
 		      (SDC_ADV_SET_MEM_SIZE) + \
 		      (SDC_LE_POWER_CONTROL_MEM_SIZE) + \
+		      (SDC_SUBRATING_MEM_SIZE) + \
 		      (SDC_PERIODIC_ADV_MEM_SIZE) + \
 		      (SDC_PERIODIC_ADV_RSP_MEM_SIZE) + \
 		      (SDC_PERIODIC_SYNC_MEM_SIZE) + \