arm: socfpga: fpga: fix type of local variable

The 'status' variable in 'socfpga_load()' for both gen5 and arria10
is of type 'unsigned long' while it is always used as 'int' only.
Change it to 'int'.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
diff --git a/drivers/fpga/socfpga_gen5.c b/drivers/fpga/socfpga_gen5.c
index 184de74..6d16e0b 100644
--- a/drivers/fpga/socfpga_gen5.c
+++ b/drivers/fpga/socfpga_gen5.c
@@ -204,7 +204,7 @@
  */
 int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size)
 {
-	unsigned long status;
+	int status;
 
 	if ((uint32_t)rbf_data & 0x3) {
 		puts("FPGA: Unaligned data, realign to 32bit boundary.\n");