common: Remove <common.h> and add needed includes

Remove <common.h> from all "commmon/" files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/common/event.c b/common/event.c
index 16c2ba6..dda569d 100644
--- a/common/event.c
+++ b/common/event.c
@@ -9,13 +9,13 @@
 
 #define LOG_CATEGORY	LOGC_EVENT
 
-#include <common.h>
 #include <event.h>
 #include <event_internal.h>
 #include <log.h>
 #include <linker_lists.h>
 #include <malloc.h>
 #include <asm/global_data.h>
+#include <linux/errno.h>
 #include <linux/list.h>
 #include <relocate.h>