ARM: mm: remove broken condition check for v4 flushing

There's no point having a conditional cache flush if we don't know the
state of the condition beforehand.

This patch makes the cacheflush in v4_flush_user_cache_range
unconditional.
signed-off-by: will deacon <will.deacon@arm.com>

arch/arm/mm/cache-v4.S

@@ -58,7 +58,7 @@ ENTRY(v4_flush_kern_cache_all)
 ENTRY(v4_flush_user_cache_range)
 #ifdef CONFIG_CPU_CP15
 	mov	ip, #0
-	mcreq	p15, 0, ip, c7, c7, 0		@ flush ID cache
+	mcr	p15, 0, ip, c7, c7, 0		@ flush ID cache
 	mov	pc, lr
 #else
 	/* FALLTHROUGH */