tools/mkexport.sh: stop refering kernel path

This stops exported LDELFFLAGS from referring to kernel folder
linkscripts because kernel folder might not be present in such
app building use cases.

Signed-off-by: Yanfeng Liu <p-liuyanfeng9@xiaomi.com>

tools/mkexport.sh

@@ -231,6 +231,10 @@ if [ "X${USRONLY}" != "Xy" ]; then
   done
 fi
 
+# Drop kernel folder modlib/gnu-elf.ld as the exported script shall suffice
+
+LDELFFLAGS=$(echo "$LDELFFLAGS" | sed -e 's:-T.*ld::')
+
 # Set LDMODULEFLAGS so that kernel modules can build in kernel mode
 
 LDMODULEFLAGS="-r"