drivers: Remove unnecessary inclusions of asm/semaphore.h

None of these files use any of the functionality promised by
asm/semaphore.h.  It's possible that they rely on it dragging in some
unrelated header file, but I can't build all these files, so we'll have
fix any build failures as they come up.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

drivers/infiniband/hw/amso1100/c2.h

@@ -40,7 +40,6 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <linux/idr.h>
-#include <asm/semaphore.h>
 
 #include "c2_provider.h"
 #include "c2_mq.h"