Removes need for -DNDEBUG hack in component.mk (fixed upstream).
COMPONENT_SRCDIRS := nghttp2/lib
-# nghttp2_session.c uses assert(0) in place of abort() in some functions,
-# that miss a return statement if assertions are disabled.
-# So it always needs assertions to be enabled
-nghttp2/lib/nghttp2_session.o: CPPFLAGS := $(filter-out -DNDEBUG,$(CPPFLAGS))
+COMPONENT_SUBMODULES := nghttp2
-Subproject commit 2f146e4d4cfe895d65599b87df7d847435f0e1b4
+Subproject commit 3bcc416e13cc790e2fb45fcfe9111d38609c5032