ARM: dts: qcom: Enable software pull-up for sdxpoorwills

Hardware pull-up for i2c lines is present on external ABUG
card and when ABUG is not connected timeout happens on
sensor probe, to avoid this used the s/w pull up for i2c
lines.

Change-Id: I664e1f8b583ead77f3b57f448456fcbe63fdacdc
Signed-off-by: Sanjay Dwivedi <sanjaykd@codeaurora.org>