PcAtChipsetPkg/PcatChipsetPkg.dsc: Add a driver to build

PcAtChipsetPkg/PcatChipsetPkg.dsc: Add a driver to build

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1646

Add the IdeControllerDxe driver to the [Components] section
to make sure it would build correctly.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>