ARM64: zynqmp: Enable CONFIG_AHCI via Kconfig

Move CONFIG_AHCI to defconfig.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_zynqmp_zcu102_defconfig b/configs/xilinx_zynqmp_zcu102_defconfig
index 78db9d9..90b5ff6 100644
--- a/configs/xilinx_zynqmp_zcu102_defconfig
+++ b/configs/xilinx_zynqmp_zcu102_defconfig
@@ -6,6 +6,7 @@
 CONFIG_IDENT_STRING=" Xilinx ZynqMP ZCU102"
 CONFIG_SYS_TEXT_BASE=0x8000000
 CONFIG_DEFAULT_DEVICE_TREE="zynqmp-zcu102"
+CONFIG_AHCI=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_SPL_LOAD_FIT=y