Convert CONFIG_LBA48 et al to Kconfig

This converts the following to Kconfig:
   CONFIG_LBA48
   CONFIG_SYS_64BIT_LBA

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/P4080DS_SPIFLASH_defconfig b/configs/P4080DS_SPIFLASH_defconfig
index 90b4688..79a3b95 100644
--- a/configs/P4080DS_SPIFLASH_defconfig
+++ b/configs/P4080DS_SPIFLASH_defconfig
@@ -46,6 +46,7 @@
 CONFIG_USE_ETHPRIME=y
 CONFIG_ETHPRIME="FM1@DTSEC1"
 CONFIG_DM=y
+CONFIG_LBA48=y
 CONFIG_FSL_CAAM=y
 CONFIG_DDR_ECC=y
 CONFIG_ECC_INIT_VIA_DDRCONTROLLER=y