config: replace deprecated AM_CONFIG_HEADER with AC_CONFIG_HEADERS
config: replace deprecated AM_CONFIG_HEADER with AC_CONFIG_HEADERS

Regroup AC statements under the Autoconf initialization section.
Regroup AM sttaements under the Automake initialization section.
Add missing AC_CONFIG_SRCDIR

Signed-off-by: Alan Coopersmith <ea3248f8c2440b9439894eab21ef26209b22bacf@oracle.com>

rsaxvc/xDisapprovingEyes,rsaxvc/xDisapprovingEyes