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>

arch/mips/cpu/mips32/config.mk

@@ -21,4 +21,5 @@ else
 PLATFORM_LDFLAGS  += -m elf32ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T $(srctree)/$(src)/mips.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 \
+			       -T $(srctree)/examples/standalone/mips.lds

arch/mips/cpu/mips64/config.mk

@@ -21,4 +21,5 @@ else
 PLATFORM_LDFLAGS  += -m elf64ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 -T $(srctree)/$(src)/mips64.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 \
+			       -T $(srctree)/examples/standalone/mips64.lds

arch/mips/cpu/xburst/config.mk

@@ -12,4 +12,5 @@ else
 PLATFORM_LDFLAGS  += -m elf32ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T $(srctree)/$(src)/mips.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 \
+			       -T $(srctree)/examples/standalone/mips.lds

arch/nds32/config.mk

@@ -12,7 +12,8 @@ ifeq ($(CROSS_COMPILE),)
 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

arch/sparc/config.mk

@@ -10,6 +10,6 @@ CROSS_COMPILE := sparc-elf-
 endif
 
 CONFIG_STANDALONE_LOAD_ADDR ?= 0x00000000 -L $(gcclibdir) \
-			-T $(srctree)/$(src)/sparc.lds
+			       -T $(srctree)/examples/standalone/sparc.lds
 
 PLATFORM_CPPFLAGS += -DCONFIG_SPARC -D__sparc__