soc/qualcomm/sdm845: Remove unused 'include <timestamp.h>'

Change-Id: I9b91184ee1daf4dd40f17984ef2a30756e845906
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35123
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/qualcomm/sdm845/aop_load_reset.c

@@ -16,7 +16,6 @@
 #include <arch/cache.h>
 #include <cbfs.h>
 #include <console/console.h>
-#include <timestamp.h>
 #include <soc/mmu.h>
 #include <soc/aop.h>
 #include <soc/clock.h>