include: Further cleanup includes

Add some missing headers such as <linux/errno.h> or <linux/types.h> or
<linux/kernel.h> to header files that make direct usage of things
provided by these headers.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

include/mapmem.h

@@ -13,6 +13,8 @@
 # ifdef CONFIG_ARCH_MAP_SYSMEM
 #include <asm/io.h>
 # else
+#include <linux/types.h>
+
 static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
 {
 	return (void *)(uintptr_t)paddr;