Recent change to autotools.bbclass broke netperf as it can not now find
proper macros. Remove old workaround and add a proper patch to utilize
ACLOCAL_AMFLAGS option.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
