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/ls1012aqds_qspi_defconfig b/configs/ls1012aqds_qspi_defconfig
index e10eb7e..7e2f701 100644
--- a/configs/ls1012aqds_qspi_defconfig
+++ b/configs/ls1012aqds_qspi_defconfig
@@ -8,6 +8,7 @@
 CONFIG_ENV_SECT_SIZE=0x40000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="fsl-ls1012a-qds"
+CONFIG_FSL_QIXIS=y
 CONFIG_FSL_LS_PPA=y
 CONFIG_QSPI_AHB_INIT=y
 CONFIG_AHCI=y