hawkboard: Fix SPL Nand driver misconfiguration

Hawkboard was using the wrong nand_read_page version for SPL image.
As a side effect, the u-boot image loaded by the SPL from nand
was getting corrupted.

Enable CONFIG_SYS_NAND_HW_ECC_OOBFIRST to select the correct nand_read_page
algorithm for SPL.
Signed-off-by: Linu Cherian <linucherian@gmail.com>
Acked-by: Sughosh Ganu <urwithsughosh@gmail.com>
Acked-by: Tom Rini <trini@ti.com>

include/configs/hawkboard.h

@@ -123,6 +123,7 @@
 #define CONFIG_SYS_NAND_USE_FLASH_BBT
 #define CONFIG_NAND_DAVINCI
 #define CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST
+#define CONFIG_SYS_NAND_HW_ECC_OOBFIRST /* SPL nand driver configuration */
 #define CFG_DAVINCI_STD_NAND_LAYOUT
 #define CONFIG_SYS_NAND_CS		3
 #define CONFIG_SYS_NAND_PAGE_2K