[MTD] Mark NAND drivers TOTO and PPChameleon broken

Both drivers can not be fixed and compiled due to missing header files.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index c2cb87f..f24408d 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -65,7 +65,7 @@
 
 config MTD_NAND_TOTO
 	tristate "NAND Flash device on TOTO board"
-	depends on ARCH_OMAP && MTD_NAND
+	depends on ARCH_OMAP && MTD_NAND && BROKEN
 	help
 	  Support for NAND flash on Texas Instruments Toto platform.
 
@@ -96,7 +96,7 @@
 
 config MTD_NAND_PPCHAMELEONEVB
 	tristate "NAND Flash device on PPChameleonEVB board"
-	depends on PPCHAMELEONEVB && MTD_NAND
+	depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
 	help
 	  This enables the NAND flash driver on the PPChameleon EVB Board.