omap3_logic: Fix CONS_INDEX

The console index for SPL should be 1 not 3 in order to see text during
SPL.

Fixes: 6f6b7cfa89e5 ("Convert all of CONFIG_CONS_INDEX to Kconfig")
Signed-off-by: Adam Ford <aford173@gmail.com>

configs/omap3_logic_defconfig

@@ -45,7 +45,7 @@ CONFIG_NETDEVICES=y
 CONFIG_SMC911X=y
 CONFIG_SMC911X_BASE=0x08000000
 CONFIG_SMC911X_32_BIT=y
-CONFIG_CONS_INDEX=3
+CONFIG_CONS_INDEX=1
 CONFIG_SYS_NS16550=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y