arm: mx6: Remove SPI support from WRU-IV baseboard

This patch removes the SPI support from the WRU-IV baseboard as its
not used at all.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
Cc: Markus Niebel <Markus.Niebel@tq-group.com>
Cc: Stefano Babic <sbabic@denx.de>
Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>

board/tqc/tqma6/tqma6.c

@@ -25,6 +25,7 @@
 #include <mmc.h>
 #include <power/pfuze100_pmic.h>
 #include <power/pmic.h>
+#include <spi_flash.h>
 
 #include "tqma6_bb.h"
 

configs/tqma6s_wru4_mmc_defconfig

@@ -7,5 +7,4 @@ CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_PROMPT="Enter password in %d seconds to stop autoboot\n"
 CONFIG_AUTOBOOT_ENCRYPTION=y
 CONFIG_AUTOBOOT_STOP_STR_SHA256="36a9e7f1c95b82ffb99743e0c5c4ce95d83c9a430aac59f84ef3cbfab6145068"
-CONFIG_SPI_FLASH=y
 CONFIG_PCA9551_LED=y

include/configs/tqma6_wru4.h

@@ -68,4 +68,12 @@
 #define CONFIG_SYS_BOOTCOUNT_ADDR	IRAM_BASE_ADDR
 #define CONFIG_SYS_BOOTCOUNT_BE
 
+/*
+ * Remove all unused interfaces / commands that are defined in
+ * the common header tqms6.h
+ */
+#undef CONFIG_CMD_SF
+#undef CONFIG_CMD_SPI
+#undef CONFIG_MXC_SPI
+
 #endif /* __CONFIG_TQMA6_WRU4_H */