pjsip: Increase maximum number of format attributes.

Chrome has added more attributes, causing the limit to be
exceeded. This raises it up some more.

ASTERISK-30015

Change-Id: I964957c005c4e6f7871b15ea1ccd9b4659c7ef32

third-party/pjproject/patches/config_site.h

@@ -77,7 +77,7 @@
 /* Increase limits to allow more formats */
 #define	PJMEDIA_MAX_SDP_FMT   64
 #define	PJMEDIA_MAX_SDP_BANDW   4
-#define	PJMEDIA_MAX_SDP_ATTR   (PJMEDIA_MAX_SDP_FMT*2 + 4)
+#define	PJMEDIA_MAX_SDP_ATTR   (PJMEDIA_MAX_SDP_FMT*3 + 4)
 #define	PJMEDIA_MAX_SDP_MEDIA   16
 
 /*