Some keyboard controller have support for more than 16 columns and rows. Change-Id: I3fd207bfcb21648e1e6601c20588907a6c45270e Signed-off-by: Trilok Soni <tsoni@codeaurora.org> (cherry picked from commit 1fcc71dd2431913af3a5baab5d2e25ffc318a5ad) Conflicts: include/linux/input/matrix_keypad.h