[nrf toup][nrfconnect] Add Kconfig for CHIPoBLE single connection mode

Add `CONFIG_CHIP_CHIPOBLE_SINGLE_CONNECTION` Kconfig to control CHIPoBLE
single conection mode.

Signed-off-by: Adrian Gielniewski <adrian.gielniewski@nordicsemi.no>

Author: adigie

config/nrfconnect/chip-module/Kconfig

@@ -521,4 +521,12 @@ config CHIP_CRYPTO_USE_X509
 	help
 	  Enables X.509 certificate support for Matter.
 
+config CHIP_CHIPOBLE_SINGLE_CONNECTION
+	bool "Single Connection Mode"
+	default y
+	depends on BT
+	help
+	  Limit support for chip-over-BLE (CHIPoBLE) to a single connection.
+	  When set, CHIPoBLE advertisements will stop while a CHIPoBLE connection is active.
+
 endif # CHIP

src/platform/nrfconnect/CHIPDevicePlatformConfig.h

@@ -81,6 +81,11 @@
 
 #ifdef CONFIG_BT
 #define CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE CONFIG_BT
+#ifdef CONFIG_CHIP_CHIPOBLE_SINGLE_CONNECTION
+#define CHIP_DEVICE_CONFIG_CHIPOBLE_SINGLE_CONNECTION 1
+#else // CONFIG_CHIP_CHIPOBLE_SINGLE_CONNECTION
+#define CHIP_DEVICE_CONFIG_CHIPOBLE_SINGLE_CONNECTION 0
+#endif // CONFIG_CHIP_CHIPOBLE_SINGLE_CONNECTION
 #else
 #define CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE 0
 #endif