first_stage_init: load modules in modules.load.recovery in recovery

In recovery mode, load modules from modules.load.recovery if it
exists. Otherwise load from modules.load as usual.

Change-Id: I7636bb5958ed10ae9a66015f04f168129618272f
diff --git a/libmodprobe/libmodprobe.cpp b/libmodprobe/libmodprobe.cpp
index f22bbf1..d193796 100644
--- a/libmodprobe/libmodprobe.cpp
+++ b/libmodprobe/libmodprobe.cpp
@@ -312,7 +312,7 @@
     }
 }
 
-Modprobe::Modprobe(const std::vector<std::string>& base_paths) {
+Modprobe::Modprobe(const std::vector<std::string>& base_paths, const std::string load_file) {
     using namespace std::placeholders;
 
     for (const auto& base_path : base_paths) {
@@ -326,7 +326,7 @@
         ParseCfg(base_path + "/modules.softdep", softdep_callback);
 
         auto load_callback = std::bind(&Modprobe::ParseLoadCallback, this, _1);
-        ParseCfg(base_path + "/modules.load", load_callback);
+        ParseCfg(base_path + "/" + load_file, load_callback);
 
         auto options_callback = std::bind(&Modprobe::ParseOptionsCallback, this, _1);
         ParseCfg(base_path + "/modules.options", options_callback);