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/ls1088aqds_qspi_defconfig b/configs/ls1088aqds_qspi_defconfig
index b1ae35a..9f9f23f 100644
--- a/configs/ls1088aqds_qspi_defconfig
+++ b/configs/ls1088aqds_qspi_defconfig
@@ -15,6 +15,7 @@
 CONFIG_VID_FLS_ENV="ls1088aqds_vdd_mv"
 CONFIG_VOL_MONITOR_LTC3882_READ=y
 CONFIG_VOL_MONITOR_LTC3882_SET=y
+CONFIG_FSL_QIXIS=y
 CONFIG_FSL_LS_PPA=y
 CONFIG_QSPI_AHB_INIT=y
 CONFIG_AHCI=y