Input: pxa27x_keypad - rename the driver (was pxa27x_keyboard)

The controller should really be called keypad, and also align
the naming of functions and structures to use "pxa27x_keypad"
as prefix, instead of "pxakbd".

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 6caa065..e741f40 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -19,7 +19,7 @@
 obj-$(CONFIG_KEYBOARD_HIL)		+= hil_kbd.o
 obj-$(CONFIG_KEYBOARD_HIL_OLD)		+= hilkbd.o
 obj-$(CONFIG_KEYBOARD_OMAP)		+= omap-keypad.o
-obj-$(CONFIG_KEYBOARD_PXA27x)		+= pxa27x_keyboard.o
+obj-$(CONFIG_KEYBOARD_PXA27x)		+= pxa27x_keypad.o
 obj-$(CONFIG_KEYBOARD_AAED2000)		+= aaed2000_kbd.o
 obj-$(CONFIG_KEYBOARD_GPIO)		+= gpio_keys.o
 obj-$(CONFIG_KEYBOARD_HP6XX)		+= jornada680_kbd.o