recovery: Allow separating device asserts with a colon too

* android::base::Split already supports multiple separators

* Make FINGERPRING_SEPARATOR a #define so that we can easily
  append the other separator. Why even was it ever a char* ?

  Note that we cannot directly make FINGERPRINT_SEPARATOR use ':'
  as a separator because, as the name suggests, it's also used to
  split build fingerprints which include ':' as a valid character.

Change-Id: I101e394d8e9fd7f2cbfcf01314e9bda38146c7d5
diff --git a/install/install.cpp b/install/install.cpp
index e1a9ae5..e563898 100644
--- a/install/install.cpp
+++ b/install/install.cpp
@@ -74,7 +74,7 @@
 static constexpr int VERIFICATION_PROGRESS_TIME = 60;
 static constexpr float VERIFICATION_PROGRESS_FRACTION = 0.25;
 // The charater used to separate dynamic fingerprints. e.x. sargo|aosp-sargo
-static const char* FINGERPRING_SEPARATOR = "|";
+#define FINGERPRING_SEPARATOR "|"
 static std::condition_variable finish_log_temperature;
 static bool isInStringList(const std::string& target_token, const std::string& str_list,
                            const std::string& deliminator);
@@ -216,7 +216,7 @@
   auto device = android::base::GetProperty("ro.product.device", "");
   auto pkg_device = get_value(metadata, "pre-device");
   // device name can be a | separated list, so need to check
-  if (pkg_device.empty() || !isInStringList(device, pkg_device, FINGERPRING_SEPARATOR)) {
+  if (pkg_device.empty() || !isInStringList(device, pkg_device, FINGERPRING_SEPARATOR ":")) {
     LOG(ERROR) << "Package is for product " << pkg_device << " but expected " << device;
     return false;
   }