Convert CONFIG_NORFLASH_PS32BIT to Kconfig

This converts the following to Kconfig:
   CONFIG_NORFLASH_PS32BIT

Note that we also attempt to correct the behavior of the code here,
which had been testing for "NORFLASH_PS32BIT" which would never be set,
instead check for the now set "CONFIG_NORFLASH_PS32BIT", which results
in some behavior change.

Cc: TsiChung Liew <Tsi-Chung.Liew@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/M5235EVB.h b/include/configs/M5235EVB.h
index e2f3367..625fa01 100644
--- a/include/configs/M5235EVB.h
+++ b/include/configs/M5235EVB.h
@@ -105,7 +105,7 @@
  */
 #ifdef CONFIG_SYS_FLASH_CFI
 #	define CONFIG_SYS_FLASH_SIZE		0x800000	/* Max size that the board might have */
-#ifdef NORFLASH_PS32BIT
+#ifdef CONFIG_NORFLASH_PS32BIT
 #	define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_32BIT
 #else
 #	define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_16BIT
@@ -152,7 +152,7 @@
  * CS6 - Available
  * CS7 - Available
  */
-#ifdef NORFLASH_PS32BIT
+#ifdef CONFIG_NORFLASH_PS32BIT
 #	define CONFIG_SYS_CS0_BASE	0xFFC00000
 #	define CONFIG_SYS_CS0_MASK	0x003f0001
 #	define CONFIG_SYS_CS0_CTRL	0x00001D00