sensors: add WaRP7 board listing for fxos8700 and fxas21002

Update yaml files to include warp7_m4 board in the platform_whitelist
for fxos8700 and fxas21002 sensors.

Signed-off-by: Diego Sueiro <[email protected]>

Author: diegosueiro

samples/sensor/fxas21002/sample.yaml

@@ -4,5 +4,5 @@ tests:
   test:
     harness: sensor
     tags: samples sensor
-    platform_whitelist: hexiwear_k64
+    platform_whitelist: hexiwear_k64 warp7_m4
 

samples/sensor/fxos8700/sample.yaml

@@ -3,6 +3,6 @@ sample:
 tests:
   test:
     harness: sensor
-    platform_whitelist: frdm_k64f hexiwear_k64
+    platform_whitelist: frdm_k64f hexiwear_k64 warp7_m4
     tags: samples sensor
     depends_on: i2c