coresight: set the qpdi gpio as always input

When QPDI GPIO is set as output, it pulls down the sd card detection
line thus failing sd card detection. Hence set GPIO line as always
input.

Change-Id: I65ac52a4b9a67690b47b0d3bb692c272f1a37057
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>