configs/vexpress64: add SATA_SIL24 and SKY2 configure for Juno PCIe

User can enable vexpress64.conf as following:

ARCH=arm64 scripts/kconfig/merge_config.sh arch/arm64/configs/defconfig \
linaro/configs/vexpress64.conf

Signed-off-by: Alex Shi <alex.shi@linaro.org>
diff --git a/linaro/configs/vexpress64.conf b/linaro/configs/vexpress64.conf
index cb5d016..a3bb8d4 100644
--- a/linaro/configs/vexpress64.conf
+++ b/linaro/configs/vexpress64.conf
@@ -54,3 +54,5 @@
 CONFIG_ARM_DT_BL_CPUFREQ=y
 CONFIG_ARM64_CPUIDLE=y
 CONFIG_ARM64_CRYPTO=y
+CONFIG_SATA_SIL24=y
+CONFIG_SKY2=y