Set the update locations to default in CacheLocation's constructor

Otherwise the applypatch executable will fail to back up the source
file to /cache when patching the recovery image.

Bug: 74198354
Test: run applypatch from boot to recovery
Change-Id: I6e5b9cd06d6ed0b26066b779a348437ecf984b92
diff --git a/otautil/cache_location.cpp b/otautil/cache_location.cpp
index 8f28948..8ddefec 100644
--- a/otautil/cache_location.cpp
+++ b/otautil/cache_location.cpp
@@ -25,8 +25,7 @@
   return cache_location;
 }
 
-void CacheLocation::ResetLocations() {
-  cache_temp_source_ = kDefaultCacheTempSource;
-  last_command_file_ = kDefaultLastCommandFile;
-  stash_directory_base_ = kDefaultStashDirectoryBase;
-}
+CacheLocation::CacheLocation()
+    : cache_temp_source_(kDefaultCacheTempSource),
+      last_command_file_(kDefaultLastCommandFile),
+      stash_directory_base_(kDefaultStashDirectoryBase) {}