Fix merge conflicts and update for 4.4 kitkat

Make a copy of libmincrypt in TWRP source so we do not have to
ifdef verifier.cpp for various versions of mincrypt.

Remove reboot tool from toolbox (it was removed from 4.4 and did
not compile properly on some devices in older trees)

roots.cpp

@@ -217,3 +217,22 @@ int format_volume(const char* volume) {
     LOGE("format_volume: fs_type \"%s\" unsupported\n", v->fs_type);
     return -1;
 }
+
+int setup_install_mounts() {
+    if (fstab == NULL) {
+        LOGE("can't set up install mounts: no fstab loaded\n");
+        return -1;
+    }
+    for (int i = 0; i < fstab->num_entries; ++i) {
+        Volume* v = fstab->recs + i;
+
+        if (strcmp(v->mount_point, "/tmp") == 0 ||
+            strcmp(v->mount_point, "/cache") == 0) {
+            if (ensure_path_mounted(v->mount_point) != 0) return -1;
+
+        } else {
+            if (ensure_path_unmounted(v->mount_point) != 0) return -1;
+        }
+    }
+    return 0;
+}