Add gnss 8122 support.

Change-Id: I71457eea400e55d41c59a12549b2eec5cc5e5183
diff --git a/mbtk/mbtk_gnssd/gnss_info.h b/mbtk/mbtk_gnssd/gnss_info.h
index 0e7d4fa..a292db7 100755
--- a/mbtk/mbtk_gnssd/gnss_info.h
+++ b/mbtk/mbtk_gnssd/gnss_info.h
@@ -12,6 +12,7 @@
 
 #define GNSS_ID_6228 "6228"
 #define GNSS_ID_5311 "5311"
+#define GNSS_ID_8122 "8122"
 
 #define GNSS_PRINT_PORT_UART1       1           // 1
 #define GNSS_PRINT_PORT_USB_NMEA    (1<<1)      // 2
@@ -40,6 +41,7 @@
 typedef enum {
     GNSS_TYPE_6228 = 0,
     GNSS_TYPE_5311,
+    GNSS_TYPE_8122
 } gnss_id_enum;
 
 typedef enum {