add timer driver. Signed-off-by: Dehui Sun <dehui.sun@mediatek.com> Change-Id: I07448d85a15bb14577b05e4f302860d609420ba7
add GPIO driver Change-Id: I67a9abef078e7a62b34dfbd366b45c03892800cd Signed-off-by: Po Xu <jg_poxu@mediatek.com>