msm: 8064: Add summary interrupt configuration for IO expander

The 4x3 gpio matrix keypad is connected over the SX150X expander 2.

Change-Id: Idef2b3a10cf957128cc1f250504ec1c93fe14827
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
2 files changed