[Autoconf] Add --no-undefined to compiler option

Update the compiler flags to enable the check of undefined function at link time.

It seems the option '-no-undefined' pass in libdleyna_server_1_0_la_LDFLAGS
is not enough. Using libtool, this option should be set to the compiler flags.

Signed-off-by: Ludovic Ferrandis <ludovic.ferrandis@intel.com>
[Autoconf] Sub Makefile: Remove ACLOCAL_AMFLAGS

According to Automake.pdf:
ACLOCAL_AMFLAGS: This variable is only useful in the top-level ‘Makefile.am’.

Signed-off-by: Ludovic Ferrandis <ludovic.ferrandis@intel.com>

Fixes #127.

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>