src/drivers: Clean up includes

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: Ia40678019b2a54deb246dbfbf33ec37a8c3839e4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68206
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

src/drivers/spi/bitbang.c

@@ -3,6 +3,7 @@
 #include <console/console.h>
 #include <delay.h>
 #include <spi_bitbang.h>
+#include <types.h>
 
 /* Set to 1 to dump all SPI transfers to the UART. */
 #define TRACE		0