EmbeddedPkg/AndroidBootApp: fix the lba

Since block device is already the sub block device, the first LBA should
be 0, not the real block number.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
index 17ff4fc..fece1f8 100644
--- a/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
+++ b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
@@ -93,7 +93,7 @@
   Status = BlockIo->ReadBlocks (
                       BlockIo,
                       MediaId,
-                      PartitionPath->PartitionStart,
+                      0,
                       BlockSize,
                       Buffer
                       );
@@ -115,7 +115,7 @@
   Status = BlockIo->ReadBlocks (
                       BlockIo,
                       MediaId,
-                      PartitionPath->PartitionStart,
+                      0,
                       Size,
                       Buffer
                       );