pru: Add wrappers for gpio_x_reset()

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

src/pru/gpio.c

@@ -103,6 +103,12 @@ fail:
     shutdown("Not an output pin");
 }
 
+void
+gpio_out_reset(struct gpio_out g, uint8_t val)
+{
+    shutdown("PRU does not support push/pull pins");
+}
+
 void
 gpio_out_toggle_noirq(struct gpio_out g)
 {
@@ -142,6 +148,12 @@ fail:
     shutdown("Not an input pin");
 }
 
+void
+gpio_in_reset(struct gpio_in g, int8_t pull_up)
+{
+    shutdown("PRU does not support push/pull pins");
+}
+
 uint8_t
 gpio_in_read(struct gpio_in g)
 {