DM: SPI: Convert display5 to use SPI with DM/DTS (but no in SPL)

The DM/DTS support for SPI is disabled on purpose for SPL, as it is not
supported as of time of this conversion.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
diff --git a/include/configs/display5.h b/include/configs/display5.h
index 6f19e55..bbcb5da 100644
--- a/include/configs/display5.h
+++ b/include/configs/display5.h
@@ -35,8 +35,11 @@
  * 0x1540000 - 0x1640000 : SPI.factory  (1MiB)
  */
 
-#ifndef CONFIG_SPL_BUILD
-#define CONFIG_SPI_FLASH_MTD
+/* SPI Flash Configs */
+#if defined(CONFIG_SPL_BUILD)
+#undef CONFIG_DM_SPI
+#undef CONFIG_DM_SPI_FLASH
+#undef CONFIG_SPI_FLASH_MTD
 #endif
 
 /* Below values are "dummy" - only to avoid build break */