Input: matrix_keypad - remove duplicated include

The header files consumer.h is included twice in matrix_keypad.c,
so one inclusion of each can be removed.

Reported-by: Abaci Robot <[e-mail]>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=10823
Signed-off-by: Yang Li <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/keyboard/matrix_keypad.c

···
 #include <linux/jiffies.h>
 #include <linux/module.h>
 #include <linux/gpio.h>
-#include <linux/gpio/consumer.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/slab.h>
 #include <linux/of.h>