include: Drop <common.h> from include lists

At this point, we don't need to have <common.h> be included because of
properties in the header itself, it only includes other common header
files. We've also audited the code enough at this point that we can drop
<common.h> from being included in headers and rely on code to have the
correct inclusions themselves, or at least <common.h>.

Signed-off-by: Tom Rini <trini@konsulko.com>

include/linux/mtd/spinand.h

@@ -17,7 +17,6 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/spi-mem.h>
 #else
-#include <common.h>
 #include <spi.h>
 #include <spi-mem.h>
 #include <linux/mtd/nand.h>

include/linux/usb/composite.h

@@ -21,7 +21,6 @@
  * the composite model the host can use both functions at the same time.
  */
 
-#include <common.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 #include <linux/bitmap.h>