linux-wandboard

[SPARC64]: Include <linux/rwsem.h> instead of <asm/rwsem.h>.

To be consistent with other architectures, include the generic version
of rwsem.h.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: David S. Miller <davem@davemloft.net>