[keypad/msm7630]: Fix the bootup issue while trying to do soft reset using Jtag

During soft reset using Jtag, the device goes into fastboot mode.
The key scanner is detecting all the keys in a particular row as pressed.
The fix filters this condition where the key scanner reports that
all keys in the row are pressed at the same time.

CRs-Fixed: 227799
1 file changed