samples: matter: Decrease BT max connections to 8

Due to a lack of RAM decrease the maximum number of BT
connections from 10 to 8 on Matter Bridge over Thread.

Signed-off-by: Arkadiusz Balys <[email protected]>

Author: ArekBalysNordic

applications/matter_bridge/boards/nrf5340dk_nrf5340_cpuapp.conf

@@ -4,8 +4,8 @@
 # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 #
 
-# Set 10 BLE connections, as it is an upper limit supported caused by RAM usage due to using Thread and BLE at same time.
-CONFIG_BT_MAX_CONN=10
+# Set 8 BLE connections, as it is an upper limit supported caused by RAM usage due to using Thread and BLE at same time.
+CONFIG_BT_MAX_CONN=8
 
 # Set buffer sizes in a consistent way with the ones used by the network core.
 CONFIG_BT_BUF_ACL_RX_SIZE=69

applications/matter_bridge/sysbuild/ipc_radio/boards/nrf5340dk_nrf5340_cpunet.conf

@@ -4,8 +4,8 @@
 # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 #
 
-# Set 10 BLE connections, as it is an upper limit supported caused by RAM usage due to using Thread and BLE at same time.
-CONFIG_BT_MAX_CONN=10
+# Set 8 BLE connections, as it is an upper limit supported caused by RAM usage due to using Thread and BLE at same time.
+CONFIG_BT_MAX_CONN=8
 
 # Decrease stack and buffer sizes to free some RAM and support 10 BLE connections
 CONFIG_MAIN_STACK_SIZE=512