Revert "mkbootimg: Build mkbootimg with Soong."

This reverts commit 51360fc3497004fddcc351460bb9a1b9ae6b9b6a.

Reason for revert: Triggered some crash in Soong.

Bug: 116698229
Change-Id: Iab4827fdadc65cbabb60aa07eeac7b33acea68a0
diff --git a/mkbootimg/Android.mk b/mkbootimg/Android.mk
new file mode 100644
index 0000000..92e1e27
--- /dev/null
+++ b/mkbootimg/Android.mk
@@ -0,0 +1,20 @@
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := mkbootimg
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_IS_HOST_MODULE := true
+
+LOCAL_MODULE := mkbootimg
+
+include $(BUILD_PREBUILT)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := unpack_bootimg
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_IS_HOST_MODULE := true
+
+LOCAL_MODULE := unpack_bootimg
+
+include $(BUILD_PREBUILT)