[ARM] orion5x: increment window counter after adding sram mapping

Without incrementing the counter the next window setup will overwrite
the SRAM mapping.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c
index 6f3f77d..d78731e 100644
--- a/arch/arm/mach-orion5x/addr-map.c
+++ b/arch/arm/mach-orion5x/addr-map.c
@@ -200,6 +200,6 @@
 
 int __init orion5x_setup_sram_win(void)
 {
-	return setup_cpu_win(win_alloc_count, ORION5X_SRAM_PHYS_BASE,
+	return setup_cpu_win(win_alloc_count++, ORION5X_SRAM_PHYS_BASE,
 			ORION5X_SRAM_SIZE, TARGET_SRAM, ATTR_SRAM, -1);
 }