[PATCH] m32r: build fix for SMP kernel

[PATCH] m32r: build fix for SMP kernel

Here is a patch to fix compile errors of 2.6.11-rc4 for the m32r SMP
kernel.

 * include/asm-m32r/spinlock.h:
	- Add read_can_lock() and write_can_lock() to fix build errors for SMP.
	- Rename 'lock' to 'slock'. (cf. Changesets 1.1966.85.1)

 * arch/m32r/kernel/smp.c:
	- Rename 'lock' to 'slock'. (cf. Changesets 1.1966.85.1)

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>