Add option for controling app image class initialization

The new option is --initialize-app-image-classes. This attempts to
initialize app image classes by running the class initializers ahead
of time.

Will test this through test 660, but there are currently aborts when
it's enabled.

Test: test-art-host
Bug: 70735003

Change-Id: Icc05683b23098a15531097f67aad17144f0badaf
diff --git a/compiler/driver/compiler_options.cc b/compiler/driver/compiler_options.cc
index 6a7def8..8d09977 100644
--- a/compiler/driver/compiler_options.cc
+++ b/compiler/driver/compiler_options.cc
@@ -76,6 +76,7 @@
       deduplicate_code_(true),
       count_hotness_in_compiled_code_(false),
       resolve_startup_const_strings_(false),
+      initialize_app_image_classes_(false),
       check_profiled_methods_(ProfileMethodsCheck::kNone),
       max_image_block_size_(std::numeric_limits<uint32_t>::max()),
       register_allocation_strategy_(RegisterAllocator::kRegisterAllocatorDefault),