Add the end-to-end region tests to the host tarball.

BUG: 79172249
Test: Local build and boot
Change-Id: Ica177707268fb3a93fcd0303469cf9d69e887d6d
diff --git a/host_package.mk b/host_package.mk
index 63fb8ba..0e1b94b 100644
--- a/host_package.mk
+++ b/host_package.mk
@@ -20,6 +20,7 @@
 tests_path := $(notdir $(HOST_OUT_NATIVE_TESTS))
 
 cvd_host_executables := \
+    host_region_e2e_test \
     launch_cvd \
     socket_forward_proxy \
     stop_cvd \