samples: nrf9160: modem_shell: Align with upstream console changes

Configure console/shell with Device Tree instead of Kconfig. Add extra
step for the CI to build the PPP configuration.

Signed-off-by: Robert Lubos <[email protected]>

Author: rlubos

samples/nrf9160/modem_shell/overlay-ppp.conf

@@ -18,9 +18,6 @@ CONFIG_MOSH_SMS=n
 CONFIG_SMS=n
 
 # UARTs are switched
-CONFIG_UART_SHELL_ON_DEV_NAME="UART_1"
-CONFIG_UART_CONSOLE_ON_DEV_NAME="UART_1"
-
 CONFIG_NET_PPP_UART_NAME="UART_0"
 
 # Enable net shell commands
@@ -48,6 +45,7 @@ CONFIG_NET_IP_ADDR_CHECK=n
 CONFIG_NET_DEFAULT_IF_PPP=y
 
 # UART PPP driver
+CONFIG_NET_DRIVERS=y
 CONFIG_NET_PPP=y
 #CONFIG_NET_PPP_RX_PRIORITY=15
 CONFIG_NET_PPP_DRV_NAME="ppp"

samples/nrf9160/modem_shell/boards/nrf9160dk_nrf9160_ns.overlay renamed to samples/nrf9160/modem_shell/ppp.overlay

@@ -10,3 +10,10 @@
 &uart1 {
 	status = "okay";
 };
+
+/ {
+	chosen {
+		zephyr,console = &uart1;
+		zephyr,shell-uart = &uart1;
+	};
+};

samples/nrf9160/modem_shell/sample.yaml

@@ -7,3 +7,11 @@ tests:
     integration_platforms:
       - nrf9160dk_nrf9160_ns
     tags: ci_build
+  samples.nrf9160.modem_shell.ppp:
+    build_only: true
+    platform_allow: nrf9160dk_nrf9160_ns
+    integration_platforms:
+      - nrf9160dk_nrf9160_ns
+    extra_args: OVERLAY_CONFIG=overlay-ppp.conf
+                DTC_OVERLAY_FILE="ppp.overlay"
+    tags: ci_build