[Bugfix][API-598][GNSS]Fix Set gnss mode 10 first and then uses other modes ,mode switch fails

Change-Id: I0e3bf78ed2c2f92a4b38bd6aa429da55f70db0c0
diff --git a/src/lynq/lib/liblynq-gnss/src/lynq_prop.c b/src/lynq/lib/liblynq-gnss/src/lynq_prop.c
index 3e53b59..deaacc2 100755
--- a/src/lynq/lib/liblynq-gnss/src/lynq_prop.c
+++ b/src/lynq/lib/liblynq-gnss/src/lynq_prop.c
@@ -67,6 +67,7 @@
             LYNQ_STRNCPY(buffer2, val, PROPBUF_SIZE);

             strncat(buffer1, "=", PROPBUF_SIZE - strlen(buffer1) - 1);

             strncat(buffer1, buffer2, PROPBUF_SIZE - strlen(buffer1) - 1);

+            strncat(buffer1, "\n", PROPBUF_SIZE - strlen(buffer1) - 1);

             RLOGD("After modify [%s] in file [%s]", buffer1, file_name);

             changed = 1;

             fprintf(fp, "%s", buffer1);

@@ -80,6 +81,7 @@
         strncat(linebuffer, key, PROPBUF_SIZE - strlen(linebuffer) - 1);

         strncat(linebuffer, "=", PROPBUF_SIZE - strlen(linebuffer) - 1);

         strncat(linebuffer, val, PROPBUF_SIZE - strlen(linebuffer) - 1);

+        strncat(linebuffer, "\n", PROPBUF_SIZE - strlen(buffer1) - 1);

         RLOGD("Add config [%s] to file [%s]", linebuffer, file_name);

         res = fseek(fp, 0, SEEK_END);

         if(res < 0) {