soc/amd/common/blocks/include: rename gpio_banks.h to gpio.h

This brings the AMD SoC GPIO code in line with the Intel SoC code and
removes the not really needed suffix.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ie2dbec81dfe503869beb2872b01a7475e2b88b33
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57842
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/southbridge/amd/pi/hudson/soc/gpio.h

@@ -4,7 +4,7 @@
 #define SOC_GPIO_H
 
 /* <soc/gpio.h> must provide gpio_t. */
-#include <amdblocks/gpio_banks.h>
+#include <amdblocks/gpio.h>
 
 #define SOC_GPIO_TOTAL_PINS		133