85xx: Drop FIT support to allow u-boot image to fit in 512k

The 36-bit build exceeds the 512k size we have.  Removing FIT type image
support allows us to fit and we dont really use it.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

include/configs/P2020DS.h

@@ -400,10 +400,6 @@ extern unsigned long calculate_board_ddr_clk(unsigned long dummy);
 #define CONFIG_OF_BOARD_SETUP		1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
-/* new uImage format support */
-#define CONFIG_FIT		1
-#define CONFIG_FIT_VERBOSE	1 /* enable fit_format_{error,warning}() */
-
 /* I2C */
 #define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
 #define CONFIG_HARD_I2C		/* I2C with hardware support */