Fix paths to aos_config.json to be uniform

aos_config.json will search next to the binary, so use that everywhere.

Change-Id: I55809a145e6b0117e134530b467f79529279f203
Signed-off-by: Austin Schuh <austin.schuh@bluerivertech.com>
diff --git a/aos/aos_cli_utils.cc b/aos/aos_cli_utils.cc
index e0fe9ec..dbd1bcd 100644
--- a/aos/aos_cli_utils.cc
+++ b/aos/aos_cli_utils.cc
@@ -6,7 +6,7 @@
 
 #include <iostream>
 
-DEFINE_string(config, "./aos_config.json", "File path of aos configuration");
+DEFINE_string(config, "aos_config.json", "File path of aos configuration");
 
 DEFINE_bool(
     _bash_autocomplete, false,