app: optimize heap on t91x

Wifi scan heap on t91x can optimized. We gain around 23kB ram.

Signed-off-by: Giacomo Dematteis <giacomo.dematteis@nordicsemi.no>

Author: DematteisGiacomo

app/boards/thingy91x_nrf9151_ns.conf

@@ -30,10 +30,15 @@ CONFIG_NRF70_BH_WQ_STACK_SIZE=768
 CONFIG_NRF70_IRQ_WQ_STACK_SIZE=832
 # Scan only using offload API
 CONFIG_WIFI_NM_WPA_SUPPLICANT=n
-# Wifi scan requires extended heap size
-CONFIG_HEAP_MEM_POOL_SIZE=20000
 CONFIG_NET_STATISTICS_WIFI=y
 
+# Wifi scan requires extended heap size
+# Heap allocations should be changed when CONFIG_LOCATION_METHOD_WIFI_SCANNING_RESULTS_MAX_CNT
+# and CONFIG_NRF_WIFI_SCAN_MAX_BSS_CNT (which should be the same value) are changed.
+CONFIG_NRF_WIFI_CTRL_HEAP_SIZE=10240
+CONFIG_HEAP_MEM_POOL_SIZE=6144
+CONFIG_HEAP_MEM_POOL_IGNORE_MIN=y
+
 # Wi-Fi location
 CONFIG_LOCATION_METHOD_WIFI=y
 CONFIG_LOCATION_REQUEST_DEFAULT_METHOD_FIRST_WIFI=y