Add img2simg in host and ota packages

Change-Id: Ide660cf3cf69c74bbd15d0ac6642b60d58f076fa
Signed-off-by: Mohamad Ayyash <mkayyash@google.com>
diff --git a/core/config.mk b/core/config.mk
index c3ed00f..6d9237d 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -415,6 +415,7 @@
 MAKE_F2FS := $(HOST_OUT_EXECUTABLES)/make_f2fs$(HOST_EXECUTABLE_SUFFIX)
 MKF2FSUSERIMG := $(HOST_OUT_EXECUTABLES)/mkf2fsuserimg.sh
 SIMG2IMG := $(HOST_OUT_EXECUTABLES)/simg2img$(HOST_EXECUTABLE_SUFFIX)
+IMG2SIMG := $(HOST_OUT_EXECUTABLES)/img2simg$(HOST_EXECUTABLE_SUFFIX)
 E2FSCK := $(HOST_OUT_EXECUTABLES)/e2fsck$(HOST_EXECUTABLE_SUFFIX)
 MKTARBALL := build/tools/mktarball.sh
 TUNE2FS := $(HOST_OUT_EXECUTABLES)/tune2fs$(HOST_EXECUTABLE_SUFFIX)