samples: net: Fix Wi-Fi connection failure

Fix Wi-Fi connection issue by adding `nrf70-wifi` snippet
to ensure Wi-Fi functionality works as expected.

Signed-off-by: Triveni Danda <[email protected]>

Author: D-Triveni

samples/net/aws_iot/sample.yaml

@@ -37,4 +37,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
-    extra_args: aws_iot_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+    extra_args:
+      - aws_iot_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+      - aws_iot_SNIPPET=nrf70-wifi
+      - CONFIG_HEAP_MEM_POOL_SIZE=90000

samples/net/coap_client/sample.yaml

@@ -34,4 +34,6 @@ tests:
       - ci_build
       - sysbuild
       - ci_samples_net
-    extra_args: coap_client_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+    extra_args:
+      - coap_client_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+      - coap_client_SNIPPET=nrf70-wifi

samples/net/download/boards/nrf54l15dk_nrf54l15_cpuapp.conf

@@ -82,7 +82,7 @@ CONFIG_ISR_STACK_SIZE=512
 
 # Heap sizes
 CONFIG_HEAP_MEM_POOL_IGNORE_MIN=y
-CONFIG_MBEDTLS_HEAP_SIZE=70000
+CONFIG_MBEDTLS_HEAP_SIZE=50000
 CONFIG_HEAP_MEM_POOL_SIZE=87000
 
 # POSIX API memory optimizations

samples/net/download/sample.yaml

@@ -49,4 +49,7 @@ tests:
       - nrf54l15dk/nrf54l15/cpuapp
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
-    extra_args: download_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+    extra_args:
+      - download_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+      - download_SNIPPET=nrf70-wifi
+      - CONFIG_HEAP_MEM_POOL_SIZE=90000

samples/net/https_client/boards/nrf54l15dk_nrf54l15_cpuapp.conf

@@ -78,7 +78,7 @@ CONFIG_ISR_STACK_SIZE=512
 
 # Heap sizes
 CONFIG_HEAP_MEM_POOL_IGNORE_MIN=y
-CONFIG_MBEDTLS_HEAP_SIZE=70000
+CONFIG_MBEDTLS_HEAP_SIZE=50000
 CONFIG_HEAP_MEM_POOL_SIZE=87000
 
 # POSIX API memory optimizations

samples/net/https_client/sample.yaml

@@ -62,4 +62,7 @@ tests:
       - ci_build
       - sysbuild
       - ci_samples_net
-    extra_args: https_client_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+    extra_args:
+      - https_client_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+      - https_client_SNIPPET=nrf70-wifi
+      - CONFIG_HEAP_MEM_POOL_SIZE=90000

samples/net/mqtt/sample.yaml

@@ -47,6 +47,7 @@ tests:
       - ci_samples_net
     extra_args:
       - mqtt_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+      - mqtt_SNIPPET=nrf70-wifi
   sample.net.mqtt.nrf54l15.wifi.tls:
     sysbuild: true
     build_only: true
@@ -57,7 +58,9 @@ tests:
       - ci_samples_net
     extra_args:
       - mqtt_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+      - mqtt_SNIPPET=nrf70-wifi
       - mqtt_EXTRA_CONF_FILE=overlay-tls-nrf54l15-nrf70.conf
+      - CONFIG_HEAP_MEM_POOL_SIZE=87000
   sample.net.mqtt.nrf91.tls:
     sysbuild: true
     build_only: true

samples/net/udp/sample.yaml

@@ -42,4 +42,6 @@ tests:
       - ci_build
       - sysbuild
       - ci_samples_net
-    extra_args: udp_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+    extra_args:
+      - udp_SHIELD="nrf7002eb_interposer_p1;nrf7002eb"
+      - udp_SNIPPET=nrf70-wifi