drivers: spi: spi_stm32: convert to DT_INST defines

Convert driver to use DT_INST_ defines.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
diff --git a/drivers/spi/spi_ll_stm32.c b/drivers/spi/spi_ll_stm32.c
index 5b16df8..a670237 100644
--- a/drivers/spi/spi_ll_stm32.c
+++ b/drivers/spi/spi_ll_stm32.c
@@ -506,9 +506,10 @@
 #define STM32_SPI_IRQ_HANDLER(id)					\
 static void spi_stm32_irq_config_func_##id(struct device *dev)		\
 {									\
-	IRQ_CONNECT(DT_SPI_##id##_IRQ, DT_SPI_##id##_IRQ_PRI,		\
+	IRQ_CONNECT(DT_INST_##id##_ST_STM32_SPI_IRQ_0,			\
+		    DT_INST_##id##_ST_STM32_SPI_IRQ_0_PRIORITY,		\
 		    spi_stm32_isr, DEVICE_GET(spi_stm32_##id), 0);	\
-	irq_enable(DT_SPI_##id##_IRQ);					\
+	irq_enable(DT_INST_##id##_ST_STM32_SPI_IRQ_0);			\
 }
 #else
 #define STM32_SPI_IRQ_HANDLER_DECL(id)
@@ -520,10 +521,10 @@
 STM32_SPI_IRQ_HANDLER_DECL(id);						\
 									\
 static const struct spi_stm32_config spi_stm32_cfg_##id = {		\
-	.spi = (SPI_TypeDef *) DT_SPI_##id##_BASE_ADDRESS,		\
+	.spi = (SPI_TypeDef *) DT_INST_##id##_ST_STM32_SPI_BASE_ADDRESS,\
 	.pclken = {							\
-		.enr = DT_SPI_##id##_CLOCK_BITS,			\
-		.bus = DT_SPI_##id##_CLOCK_BUS				\
+		.enr = DT_INST_##id##_ST_STM32_SPI_CLOCK_BITS,		\
+		.bus = DT_INST_##id##_ST_STM32_SPI_CLOCK_BUS		\
 	},								\
 	STM32_SPI_IRQ_HANDLER_FUNC(id)					\
 };									\
@@ -533,33 +534,34 @@
 	SPI_CONTEXT_INIT_SYNC(spi_stm32_dev_data_##id, ctx),		\
 };									\
 									\
-DEVICE_AND_API_INIT(spi_stm32_##id, DT_SPI_##id##_NAME, &spi_stm32_init, \
+DEVICE_AND_API_INIT(spi_stm32_##id, DT_INST_##id##_ST_STM32_SPI_LABEL,	\
+		    &spi_stm32_init,					\
 		    &spi_stm32_dev_data_##id, &spi_stm32_cfg_##id,	\
 		    POST_KERNEL, CONFIG_SPI_INIT_PRIORITY,		\
 		    &api_funcs);					\
 									\
 STM32_SPI_IRQ_HANDLER(id)
 
-#ifdef CONFIG_SPI_1
+#ifdef DT_INST_0_ST_STM32_SPI
+STM32_SPI_INIT(0)
+#endif /* DT_INST_0_ST_STM32_SPI */
+
+#ifdef DT_INST_1_ST_STM32_SPI
 STM32_SPI_INIT(1)
-#endif
+#endif /* DT_INST_1_ST_STM32_SPI */
 
-#ifdef CONFIG_SPI_2
+#ifdef DT_INST_2_ST_STM32_SPI
 STM32_SPI_INIT(2)
-#endif
+#endif /* DT_INST_2_ST_STM32_SPI */
 
-#ifdef CONFIG_SPI_3
+#ifdef DT_INST_3_ST_STM32_SPI
 STM32_SPI_INIT(3)
-#endif
+#endif /* DT_INST_3_ST_STM32_SPI */
 
-#ifdef CONFIG_SPI_4
+#ifdef DT_INST_4_ST_STM32_SPI
 STM32_SPI_INIT(4)
-#endif
+#endif /* DT_INST_4_ST_STM32_SPI */
 
-#ifdef CONFIG_SPI_5
+#ifdef DT_INST_5_ST_STM32_SPI
 STM32_SPI_INIT(5)
-#endif
-
-#ifdef CONFIG_SPI_6
-STM32_SPI_INIT(6)
-#endif
+#endif /* DT_INST_5_ST_STM32_SPI */