common: Drop log.h from common header

Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c
index 592e2b8..82f9419 100644
--- a/arch/arm/mach-stm32mp/cpu.c
+++ b/arch/arm/mach-stm32mp/cpu.c
@@ -8,6 +8,7 @@
 #include <debug_uart.h>
 #include <env.h>
 #include <init.h>
+#include <log.h>
 #include <misc.h>
 #include <net.h>
 #include <asm/io.h>