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/ls2080aqds_sdcard_defconfig b/configs/ls2080aqds_sdcard_defconfig
index 787fe56..d790965 100644
--- a/configs/ls2080aqds_sdcard_defconfig
+++ b/configs/ls2080aqds_sdcard_defconfig
@@ -11,6 +11,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="fsl-ls2080a-qds"
 CONFIG_SPL_TEXT_BASE=0x1800a000
 CONFIG_FSL_USE_PCA9547_MUX=y
+CONFIG_FSL_QIXIS=y
 CONFIG_FSL_LS_PPA=y
 CONFIG_SPL_MMC=y
 CONFIG_SPL_SERIAL=y