soc: xilinx: Fix Kconfig alignment

Tabs should be used for alignment instead of spaces.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

drivers/soc/xilinx/Kconfig

@@ -2,19 +2,19 @@
 menu "Xilinx SoC drivers"
 
 config XILINX_VCU
-        tristate "Xilinx VCU logicoreIP Init"
+	tristate "Xilinx VCU logicoreIP Init"
 	depends on HAS_IOMEM
-        help
-          Provides the driver to enable and disable the isolation between the
-          processing system and programmable logic part by using the logicoreIP
-          register set. This driver also configures the frequency based on the
-          clock information from the logicoreIP register set.
+	help
+	  Provides the driver to enable and disable the isolation between the
+	  processing system and programmable logic part by using the logicoreIP
+	  register set. This driver also configures the frequency based on the
+	  clock information from the logicoreIP register set.
 
-          If you say yes here you get support for the logicoreIP.
+	  If you say yes here you get support for the logicoreIP.
 
-          If unsure, say N.
+	  If unsure, say N.
 
-          To compile this driver as a module, choose M here: the
-          module will be called xlnx_vcu.
+	  To compile this driver as a module, choose M here: the
+	  module will be called xlnx_vcu.
 
 endmenu