kbuild: fix dependency on sorttable

Commit ac4f067 ("kbuild: Create intermediate vmlinux build with
relocations preserved") missed replacing one occurrence of "vmlinux"
that was added during the same development cycle.

Fixes: ac4f067 ("kbuild: Create intermediate vmlinux build with relocations preserved")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>

Author: masahir0y

scripts/Makefile.vmlinux

@@ -94,7 +94,7 @@ $(vmlinux-final): $(RESOLVE_BTFIDS)
 endif
 
 ifdef CONFIG_BUILDTIME_TABLE_SORT
-vmlinux: scripts/sorttable
+$(vmlinux-final): scripts/sorttable
 endif
 
 # module.builtin.ranges