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/efi-x86_payload64_defconfig b/configs/efi-x86_payload64_defconfig
index eef51e8..28aaff6 100644
--- a/configs/efi-x86_payload64_defconfig
+++ b/configs/efi-x86_payload64_defconfig
@@ -49,6 +49,8 @@
 CONFIG_SYS_ATA_REG_OFFSET=0
 CONFIG_SYS_ATA_ALT_OFFSET=0
 CONFIG_ATAPI=y
+CONFIG_LBA48=y
+CONFIG_SYS_64BIT_LBA=y
 # CONFIG_PCI_PNP is not set
 # CONFIG_GZIP is not set
 CONFIG_EFI=y