lis 3 basic test code

linux/boardtest/SpiTestClass.h

@@ -31,6 +31,8 @@ private:
     struct spi_ioc_transfer spiTransferStruct;
 
     void performRm3100Test(uint8_t mgmId);
+    void performLis3MdlTest(uint8_t lis3Id);
+
     /* ACS board specific code which pulls all GPIOs high */
     void acsInit();