* #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/third_party/build/Makefile b/jni/pjproject-android/third_party/build/Makefile
index 36d8061..e1cb0da 100644
--- a/jni/pjproject-android/third_party/build/Makefile
+++ b/jni/pjproject-android/third_party/build/Makefile
@@ -1,4 +1,4 @@
-DIRS = resample milenage srtp
+DIRS = milenage
 
 include ../../build.mak
 include $(PJDIR)/build/common.mak