ARM: dts: msm: Change cd-gpio polarity setting for QRD Bitra

According to QRD bitra HW design, the logic level of cd-gpio is
LOW with card and is HIGH without card. Set cd-gpio flag to
GPIO_ACTIVE_LOW for low active card installed interruption.

Change-Id: I28882b989c79fb5d5fef780f92ebc146d9defc87