LoongArch: vDSO: Remove -nostdlib complier flag

Since $(LD) is directly used, hence -nostdlib is unneeded, MIPS has
removed this, we should remove it too.

bdbf203 ("MIPS: VDSO: remove -nostdlib compiler flag").

In fact, other architectures also use $(LD) now.

fe00e50 ("ARM: 8858/1: vdso: use $(LD) instead of $(CC) to link VDSO")
691efbe ("arm64: vdso: use $(LD) instead of $(CC) to link VDSO")
2ff9069 ("MIPS: VDSO: Use $(LD) instead of $(CC) to link VDSO")
2b2a258 ("s390/vdso: Use $(LD) instead of $(CC) to link vDSO")

Cc: stable@vger.kernel.org
Reviewed-by: Yanteng Si <siyanteng@cqsoftware.com.cn>
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

Author: opsiff

arch/loongarch/vdso/Makefile

@@ -36,7 +36,7 @@ endif
 
 # VDSO linker flags.
 ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \
-	$(filter -E%,$(KBUILD_CFLAGS)) -nostdlib -shared --build-id -T
+	$(filter -E%,$(KBUILD_CFLAGS)) -shared --build-id -T
 
 #
 # Shared build commands.