lm3s6965evb-qemu: move early_boot into targets/*

Updates targets/lm3s6965evb-qemu/* and its sys_io counterpart to
match targets/stm32f429i-disc1/* by moving the early boot and
vector tables out of sys_io.

Change-Id: If1f82d5bd242807d9c4914d207b7f332291de8cf
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/16700
Commit-Queue: Ewout van Bekkum <ewout@google.com>
Reviewed-by: Armando Montanez <amontanez@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
diff --git a/pw_sys_io_baremetal_lm3s6965evb/BUILD.gn b/pw_sys_io_baremetal_lm3s6965evb/BUILD.gn
index b6cec70..c64c73f 100644
--- a/pw_sys_io_baremetal_lm3s6965evb/BUILD.gn
+++ b/pw_sys_io_baremetal_lm3s6965evb/BUILD.gn
@@ -17,15 +17,18 @@
 
 import("$dir_pw_build/target_types.gni")
 import("$dir_pw_docgen/docs.gni")
+config("default_config") {
+  include_dirs = [ "public" ]
+}
+
 pw_source_set("pw_sys_io_baremetal_lm3s6965evb") {
+  public_configs = [ ":default_config" ]
+  public = [ "public/pw_sys_io_baremetal_lm3s6965evb/init.h" ]
   public_deps = [ "$dir_pw_boot_armv7m" ]
   deps = [
     "$dir_pw_preprocessor",
     "$dir_pw_sys_io:default_putget_bytes",
     "$dir_pw_sys_io:facade",
   ]
-  sources = [
-    "early_boot.c",
-    "sys_io_baremetal.cc",
-  ]
+  sources = [ "sys_io_baremetal.cc" ]
 }