libbsc: Don't include ext_info in SI13 if not in EGPRS mode

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/openbsc/src/libbsc/system_information.c b/openbsc/src/libbsc/system_information.c
index 5814c76..1b0f5c9 100644
--- a/openbsc/src/libbsc/system_information.c
+++ b/openbsc/src/libbsc/system_information.c
@@ -420,7 +420,7 @@
 		.t3192		= 200,
 		.drx_timer_max	= 3,
 		.bs_cv_max	= 15,
-		.ext_info_present = 1,
+		.ext_info_present = 0,
 		.ext_info = {
 			/* The values below are just guesses ! */
 			.egprs_supported = 0,