Correct app data file name

Corrected app data file name and also set priority for global variable.

Change-Id: Ia9c256506fdaeea2c7fd1bde7c1a58f40f2448be
Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
diff --git a/include/appcommands.hpp b/include/appcommands.hpp
index ba61ffa..55cf81b 100644
--- a/include/appcommands.hpp
+++ b/include/appcommands.hpp
@@ -44,7 +44,7 @@
 #define SIZE_LAST_BOOT_TIME 4
 #define SIZE_PCIE_PORT_CONFIG 2
 
-#define JSON_DATA_FILE "/etc/appData.json"
+#define JSON_APP_DATA_FILE "/etc/appData.json"
 #define KEY_SYSFW_VER "sysfw_ver_server"
 #define KEY_BIOS_BOOT_LEN "bios_boot_list_len"