samples: spi_flash: Add compatibility with st,stm32-qspi-nor

Enable using st,stm32-qspi-nor compatible driver for this
sample.

Signed-off-by: Erwan Gouriou <[email protected]>

Author: erwango

samples/drivers/spi_flash/sample.yaml

@@ -3,7 +3,7 @@ sample:
 tests:
   sample.drivers.spi.flash:
     tags: spi flash
-    filter: dt_compat_enabled("jedec,spi-nor")
+    filter: dt_compat_enabled("jedec,spi-nor") or dt_compat_enabled("st,stm32-qspi-nor")
     harness: console
     harness_config:
         type: multi_line

samples/drivers/spi_flash/src/main.c

@@ -19,6 +19,9 @@
 	DT_NODE_HAS_STATUS(DT_INST(0, nordic_qspi_nor), okay)
 #define FLASH_DEVICE DT_LABEL(DT_INST(0, nordic_qspi_nor))
 #define FLASH_NAME "JEDEC QSPI-NOR"
+#elif DT_NODE_HAS_STATUS(DT_INST(0, st_stm32_qspi_nor), okay)
+#define FLASH_DEVICE DT_LABEL(DT_INST(0, st_stm32_qspi_nor))
+#define FLASH_NAME "JEDEC QSPI-NOR"
 #else
 #error Unsupported flash driver
 #endif