Convert CONFIG_FSL_QIXIS et al to Kconfig

This converts the following to Kconfig:
   CONFIG_FSL_QIXIS
   CONFIG_QIXIS_I2C_ACCESS

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ls1046aqds_tfa_defconfig b/configs/ls1046aqds_tfa_defconfig
index 5f33664..8f02423 100644
--- a/configs/ls1046aqds_tfa_defconfig
+++ b/configs/ls1046aqds_tfa_defconfig
@@ -18,6 +18,7 @@
 CONFIG_VID_FLS_ENV="ls1046aqds_vdd_mv"
 CONFIG_VOL_MONITOR_INA220=y
 CONFIG_VOL_MONITOR_IR36021_SET=y
+CONFIG_FSL_QIXIS=y
 CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT=y
 CONFIG_SEC_FIRMWARE_ARMV8_PSCI=y
 CONFIG_AHCI=y