* #39101: updated pjsip stack, many android build enhancements.

The main issue here is due to the build system of the stack compared to a pure Android
NDK project. Generating arm and x86 ABI at the same time does not seem to be possible.
diff --git a/jni/pjproject-android/pjmedia/build/Makefile b/jni/pjproject-android/pjmedia/build/Makefile
index e21e9c0..a567e63 100644
--- a/jni/pjproject-android/pjmedia/build/Makefile
+++ b/jni/pjproject-android/pjmedia/build/Makefile
@@ -3,10 +3,6 @@
 
 THIRD_PARTY:=$(PJDIR)/third_party
 
-SRTP_INC=$(CC_INC)$(THIRD_PARTY)/build/srtp \
-	 $(CC_INC)$(THIRD_PARTY)/srtp/crypto/include \
-	 $(CC_INC)$(THIRD_PARTY)/srtp/include
-
 include $(PJDIR)/build/common.mak
 
 export LIBDIR := ../lib
@@ -48,8 +44,7 @@
 		   $(CC_INC)../../pjlib-util/include \
 		   $(CC_INC)../../pjmedia/include \
 		   $(CC_INC)../../pjnath/include \
-		   $(CC_INC)../.. \
-		   $(SRTP_INC) 
+		   $(CC_INC)../..
 export _CXXFLAGS:= $(_CFLAGS) $(CC_CXXFLAGS) $(OS_CXXFLAGS) $(M_CXXFLAGS) \
 		   $(HOST_CXXFLAGS) $(CXXFLAGS)
 
@@ -71,7 +66,7 @@
 			event.o format.o ffmpeg_util.o \
 			g711.o jbuf.o master_port.o mem_capture.o mem_player.o \
 			null_port.o plc_common.o port.o splitcomb.o \
-			resample_resample.o resample_libsamplerate.o \
+			resample_resample.o resample_libsamplerate.o resample_speex.o \
 			resample_port.o rtcp.o rtcp_xr.o rtp.o \
 			sdp.o sdp_cmp.o sdp_neg.o session.o silencedet.o \
 			sound_legacy.o sound_port.o stereo_port.o stream_common.o \