powerpc: Convert beatic_irq_mask_lock to raw_spinlock

beatic_irq_mask_lock needs to be a real spinlock in RT. Convert it to
raw_spinlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
1 file changed