Input: pxa27x-keypad - replace uint32_t with u32
u32 is preferred way to refer to unsigned 32 bit values in the kernel,
use it instead of uint32_t.
Link: https://lore.kernel.org/r/20250817215316.1872689-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>