Revert "crypto: caam/jr - Remove extra memory barrier during job ring dequeue"

This reverts commit bbfcac5ff5f26aafa51935a62eb86b6eacfe8a49.

It caused a crash regression on powerpc:

https://lore.kernel.org/linux-crypto/[e-mail]/

Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/caam/jr.c

···
 		mb();
 
 		/* set done */
-		wr_reg32_relaxed(&jrp->rregs->outring_rmvd, 1);
+		wr_reg32(&jrp->rregs->outring_rmvd, 1);
 
 		jrp->out_ring_read_index = (jrp->out_ring_read_index + 1) &
 					   (JOBR_DEPTH - 1);

drivers/crypto/caam/regs.h

···
 cpu_to_caam(32)
 cpu_to_caam(64)
 
-static inline void wr_reg32_relaxed(void __iomem *reg, u32 data)
-{
-	if (caam_little_end)
-		writel_relaxed(data, reg);
-	else
-		writel_relaxed(cpu_to_be32(data), reg);
-}
-
 static inline void wr_reg32(void __iomem *reg, u32 data)
 {
 	if (caam_little_end)