EmbeddedPkg/AbootimgLib: fix unused Status variable

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/EmbeddedPkg/Library/AbootimgLib/AbootimgLib.c b/EmbeddedPkg/Library/AbootimgLib/AbootimgLib.c
index 7b81d07..b4cd1e4 100644
--- a/EmbeddedPkg/Library/AbootimgLib/AbootimgLib.c
+++ b/EmbeddedPkg/Library/AbootimgLib/AbootimgLib.c
@@ -268,6 +268,7 @@
 
   ASSERT (IS_POWER_OF_2 (Header->PageSize));
 
+  Status = EFI_SUCCESS;
   if (Header->RamdiskAddress && Header->RamdiskSize) {
     Address = (EFI_PHYSICAL_ADDRESS)(UINTN)Header->RamdiskAddress;
     Status = gBS->AllocatePages (