[PATCH] riscv: Fix build dependency for loader

[Olof Johansson]

The Makefile addition for the flat image loader missed an obj prefix.

For most parallel builds this worked out fine, but with -j1 the dependency
wasn't fulfilled and thus fails:

arch/riscv/boot/loader.S: Assembler messages:
arch/riscv/boot/loader.S:7: Error: file not found: arch/riscv/boot/Image

Fixes: 405fe7aa0dba ("riscv: provide a flat image loader")
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Olof Johansson <olof@xxxxxxxxx>
---
 arch/riscv/boot/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/boot/Makefile b/arch/riscv/boot/Makefile
index a474f98ce4fae..36db8145f9f46 100644
--- a/arch/riscv/boot/Makefile
+++ b/arch/riscv/boot/Makefile
@@ -24,7 +24,7 @@ $(obj)/Image: vmlinux FORCE
 $(obj)/Image.gz: $(obj)/Image FORCE
 	$(call if_changed,gzip)
 
-loader.o: $(src)/loader.S $(obj)/Image
+$(obj)/loader.o: $(src)/loader.S $(obj)/Image
 
 $(obj)/loader: $(obj)/loader.o $(obj)/Image $(obj)/loader.lds FORCE
 	$(Q)$(LD) -T $(obj)/loader.lds -o $@ $(obj)/loader.o
-- 
2.11.0