fpga: xilinx: Avoid CamelCase for in Xilinx_desc

No functional changes.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/board/astro/mcf5373l/fpga.c b/board/astro/mcf5373l/fpga.c
index 152ff1f..9dc82c5 100644
--- a/board/astro/mcf5373l/fpga.c
+++ b/board/astro/mcf5373l/fpga.c
@@ -374,7 +374,7 @@
 	xilinx_fastwr_fn
 };
 
-Xilinx_desc xilinx_fpga[CONFIG_FPGA_COUNT] = {
+xilinx_desc xilinx_fpga[CONFIG_FPGA_COUNT] = {
 	{xilinx_spartan3,
 	 slave_serial,
 	 XILINX_XC3S4000_SIZE,