samples: move spi tests to tests/

Change-Id: I8d4a50bcbf479c35ccb209fbb04b5b1095075933
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
diff --git a/samples/drivers/spi_test/Makefile b/tests/drivers/spi_test/Makefile
similarity index 100%
rename from samples/drivers/spi_test/Makefile
rename to tests/drivers/spi_test/Makefile
diff --git a/samples/drivers/spi_test/prj.conf b/tests/drivers/spi_test/prj.conf
similarity index 100%
rename from samples/drivers/spi_test/prj.conf
rename to tests/drivers/spi_test/prj.conf
diff --git a/samples/drivers/spi_test/src/Makefile b/tests/drivers/spi_test/src/Makefile
similarity index 100%
rename from samples/drivers/spi_test/src/Makefile
rename to tests/drivers/spi_test/src/Makefile
diff --git a/samples/drivers/spi_test/src/spi.c b/tests/drivers/spi_test/src/spi.c
similarity index 100%
rename from samples/drivers/spi_test/src/spi.c
rename to tests/drivers/spi_test/src/spi.c
diff --git a/samples/drivers/spi_test/testcase.ini b/tests/drivers/spi_test/testcase.ini
similarity index 100%
rename from samples/drivers/spi_test/testcase.ini
rename to tests/drivers/spi_test/testcase.ini