powerpc/85xx: Fix build failure for P1023RDS

When we added the fman fdt fixup we forgot to fixup the P1023RDS
platform.  So we would get:

fdt.c: In function 'fdt_fixup_fman_firmware':
fdt.c:465:15: error: 'CONFIG_SYS_FMAN_FW_LENGTH' undeclared (first use in this function)
fdt.c:465:15: note: each undeclared identifier is reported only once for each function it appears in

Add the needed #defines in P1023RDS.h to fix this.

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

include/configs/P1023RDS.h

@@ -536,16 +536,16 @@ extern unsigned long get_clock_freq(void);
 #define CONFIG_FMAN_ENET
 #endif
 
+#define CONFIG_SYS_FMAN_FW
 #ifndef CONFIG_NAND
 /* Default address of microcode for the Linux Fman driver */
 /* QE microcode/firmware address */
 #define CONFIG_SYS_FMAN_FW_ADDR		0xEF000000
-#define CONFIG_SYS_FMAN_FW_ADDR_PHYS	CONFIG_SYS_FMAN_FW_ADDR
 #else
 #define CONFIG_SYS_QE_FW_IN_NAND	0x1f00000
-#define CONFIG_SYS_FMAN_FW_ADDR		0x10000000
-#define CONFIG_SYS_FMAN_FW_LENGTH	0x10000
 #endif
+#define CONFIG_SYS_FMAN_FW_LENGTH	0x10000
+#define CONFIG_SYS_FDT_PAD		(0x3000 + CONFIG_SYS_FMAN_FW_LENGTH)
 
 #ifdef CONFIG_FMAN_ENET
 #define CONFIG_SYS_FM1_DTSEC1_PHY_ADDR	0x2