[nrf fromlist] Bluetooth: Tester: Increase config values to make test…

…s pass

Without this PTS tests do not pass. These values are copied from a
commit aimed at unifying the prj.conf files in this directory. I do not
know which of these are strictly necessary to make the tests pass.
Copying them all poses no harm since the unification will be done later
anyway.

Upstream PR #: 80911

Co-authored-by: Szymon Janc <szymon.janc@codecoup.pl>
Signed-off-by: Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no>

tests/bluetooth/tester/prj.conf

@@ -16,6 +16,7 @@ CONFIG_BT_BONDABLE=y
 CONFIG_BT_ATT_PREPARE_COUNT=12
 CONFIG_BT_GATT_CLIENT=y
 CONFIG_BT_L2CAP_DYNAMIC_CHANNEL=y
+CONFIG_BT_L2CAP_TX_MTU=255
 CONFIG_BT_L2CAP_SEG_RECV=y
 CONFIG_BT_L2CAP_RECONFIGURE_EXPLICIT=y
 CONFIG_BT_DEVICE_NAME="Tester"
@@ -27,8 +28,8 @@ CONFIG_BT_L2CAP_ECRED=y
 CONFIG_BT_EATT_MAX=5
 CONFIG_BT_FILTER_ACCEPT_LIST=y
 CONFIG_BT_EATT_AUTO_CONNECT=n
-CONFIG_BT_MAX_CONN=2
-CONFIG_BT_MAX_PAIRED=2
+CONFIG_BT_MAX_CONN=3
+CONFIG_BT_MAX_PAIRED=3
 CONFIG_BT_GATT_NOTIFY_MULTIPLE=y
 CONFIG_BT_ATT_RETRY_ON_SEC_ERR=n
 CONFIG_BT_GATT_DYNAMIC_DB=y
@@ -55,3 +56,9 @@ CONFIG_BT_DIS_SERIAL_NUMBER=y
 CONFIG_BT_DIS_FW_REV=y
 CONFIG_BT_DIS_HW_REV=y
 CONFIG_BT_DIS_SW_REV=y
+
+CONFIG_BT_BUF_EVT_RX_COUNT=16
+CONFIG_BT_BUF_EVT_RX_SIZE=255
+CONFIG_BT_BUF_CMD_TX_SIZE=255
+CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_BUF_ACL_RX_SIZE=255