[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 #124.
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
[Autoconf] Add Math lib to link

- Add Math library to the link command
- Update the compiler flags to enable the check of undefined function at link time.

It seems the option '-no-undefined' pass in libdleyna_renderer_1_0_la_LDFLAGS
is not enough. It seems using libtool, this option should be set to the
compiler flags.

Fix issue #117: Missing Math library to the link command
<https://github.com/01org/dleyna-renderer/issues/117>

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

Fixes #124
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>