config.mk: specify the exact path to standalone linker script

We want to change the build system to include config.mk
only from ./Makefile and spl/Makefile.
We must prepare for that in this commit.

$(src) is a moving target and not handy for our purpose.
We must replace it with a fixed path.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/arch/nds32/config.mk b/arch/nds32/config.mk
index 0cbc4ad..1024852 100644
--- a/arch/nds32/config.mk
+++ b/arch/nds32/config.mk
@@ -12,7 +12,8 @@
 CROSS_COMPILE := nds32le-linux-
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR = 0x300000 -T $(srctree)/$(src)/nds32.lds
+CONFIG_STANDALONE_LOAD_ADDR = 0x300000 \
+			      -T $(srctree)/examples/standalone/nds32.lds
 
 PLATFORM_RELFLAGS	+= -fno-strict-aliasing -fno-common -mrelax
 PLATFORM_RELFLAGS	+= -gdwarf-2