Convert CONFIG_SD_BOOT et al to Kconfig

This converts the following to Kconfig:
   CONFIG_SD_BOOT
   CONFIG_SD_BOOT_QSPI

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ls1021aiot_sdcard_defconfig b/configs/ls1021aiot_sdcard_defconfig
index f25c9c7..55c2bb6 100644
--- a/configs/ls1021aiot_sdcard_defconfig
+++ b/configs/ls1021aiot_sdcard_defconfig
@@ -18,10 +18,11 @@
 CONFIG_SPL=y
 CONFIG_AHCI=y
 CONFIG_SYS_LOAD_ADDR=0x82000000
-CONFIG_SYS_EXTRA_OPTIONS="SD_BOOT,SD_BOOT_QSPI"
 CONFIG_RAMBOOT_PBL=y
 CONFIG_SYS_FSL_PBL_PBI="board/freescale/ls1021aiot/ls102xa_pbi.cfg"
 CONFIG_SYS_FSL_PBL_RCW="board/freescale/ls1021aiot/ls102xa_rcw_sd.cfg"
+CONFIG_SD_BOOT=y
+CONFIG_SD_BOOT_QSPI=y
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_MISC_INIT_R=y
 CONFIG_ID_EEPROM=y
@@ -70,6 +71,7 @@
 CONFIG_PCI=y
 CONFIG_DM_PCI_COMPAT=y
 CONFIG_PCIE_LAYERSCAPE_RC=y
+CONFIG_U_QE=y
 CONFIG_SYS_QE_FW_ADDR=0xf40000
 CONFIG_DM_SCSI=y
 CONFIG_SYS_NS16550=y