ktu1125 ppc driver: type fix
Use atomic_t instead of int32
BRANCH=none
TEST=driver compiles
#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
-static uint32_t irq_pending; /* Bitmask of ports signaling an interrupt. */
+static atomic_t irq_pending; /* Bitmask of ports signaling an interrupt. */
static int read_reg(uint8_t port, int reg, int *regval)
{
