Use system assets on dialpad/calllog

Since "dial" button has green background for pressed state,
we need to copy some framework assets to our project and have
btn_call.xml which is very similar to framework's
item_background_holo_dark.xml

Also use correct "pressed" state for menu buttons

Bug: 5300071
Bug: 5298218
Change-Id: I82bebecd56716934812dfd9e0a87cbc88d04ceab