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/T2080QDS_SPIFLASH_defconfig b/configs/T2080QDS_SPIFLASH_defconfig
index d5c6dbd..d68f166 100644
--- a/configs/T2080QDS_SPIFLASH_defconfig
+++ b/configs/T2080QDS_SPIFLASH_defconfig
@@ -12,6 +12,8 @@
 CONFIG_VID_FLS_ENV="t208xqds_vdd_mv"
 CONFIG_VOL_MONITOR_IR36021_READ=y
 CONFIG_VOL_MONITOR_IR36021_SET=y
+CONFIG_FSL_QIXIS=y
+# CONFIG_QIXIS_I2C_ACCESS is not set
 CONFIG_SPL_SERIAL=y
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL=y