[sam] Fix pull-down configuration for SAMx7x and SAMG5x devices

To enable the pull-down no pull-up may be active. The code for
reconfiguring the input type was not working when the type was changed
from pull-up to pull-down.

src/modm/platform/gpio/sam/pin.hpp.in

@@ -1,6 +1,7 @@
 /*
  * Copyright (c) 2017-2018, Niklas Hauser
  * Copyright (c) 2020, Erik Henriksson
+ * Copyright (c) 2023, Christopher Durand
  *
  * This file is part of the modm project.
  *
@@ -221,8 +222,8 @@ public:
 			setPortReg(PIO_PPDDR_OFFSET); // disable pull down
 			setPortReg(PIO_PUDR_OFFSET); // disable pull up
 		} else if (type == InputType::PullDown) {
-			setPortReg(PIO_PPDER_OFFSET); // Enable pull down
 			setPortReg(PIO_PUDR_OFFSET); // disable pull up
+			setPortReg(PIO_PPDER_OFFSET); // enable pull down
 		} else {
 			setPortReg(PIO_PPDDR_OFFSET); // Disable pull down
 			setPortReg(PIO_PUER_OFFSET); // Enable pull up