Add missing <assert.h> include

Bug: 175635923
Test: m MODULES-IN-system-core-trusty
Change-Id: I7790dde8eba948cf95cb14dd2b436c3f6f88765a

trusty/apploader/apploader.cpp

diff --git a/trusty/apploader/apploader.cpp b/trusty/apploader/apploader.cpp
index 17d083c..f782d2a 100644
--- a/trusty/apploader/apploader.cpp
+++ b/trusty/apploader/apploader.cpp
@@ -19,6 +19,7 @@
 #include <BufferAllocator/BufferAllocator.h>
 #include <android-base/logging.h>
 #include <android-base/unique_fd.h>
+#include <assert.h>
 #include <fcntl.h>
 #include <getopt.h>
 #include <stdbool.h>