mb/google/foster: Remove unused 'include <memrange.h>

Change-Id: Ic26d03d0e695ce0823332d4c6430186c7bfbeac1
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41487
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/google/foster/mainboard.c

@@ -2,7 +2,6 @@
 
 #include <arch/mmu.h>
 #include <device/device.h>
-#include <memrange.h>
 #include <soc/addressmap.h>
 #include <soc/clk_rst.h>
 #include <soc/clock.h>