updater: Add Command parsing codes.

The added codes are not used in the updater yet. The switch will happen
in subsequent CLs.

Test: Run recovery_unit_test and recovery_component_test on marlin.
Change-Id: I1ae8a233280f02c2171b43ef028bdccdacb39c59
diff --git a/tests/Android.mk b/tests/Android.mk
index a9e6491..2576ea0 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -27,6 +27,7 @@
     libminui \
     libotautil \
     libupdater \
+    libgtest_prod \
     libpng \
     libziparchive \
     libutils \
@@ -133,6 +134,7 @@
     libfec \
     libfec_rs \
     libfs_mgr \
+    libgtest_prod \
     liblog \
     libselinux \
     libsparse \