[ARM] Fix warning in consistent.c

No need for 'cr' to be a local variable, which is unused in the
SMP case, and only used once in the UP case. Just call get_cr()
directly.

Signed-off-by: Russell King <[e-mail]>

arch/arm/mm/ioremap.c

···
 	int err;
 	unsigned long addr;
  	struct vm_struct * area;
-	unsigned int cr = get_cr();
 
 	/*
 	 * High mappings must be supersection aligned
···
  	addr = (unsigned long)area->addr;
 
 #ifndef CONFIG_SMP
-	if ((((cpu_architecture() >= CPU_ARCH_ARMv6) && (cr & CR_XP)) ||
+	if ((((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) ||
 	       cpu_is_xsc3()) &&
 	       !((__pfn_to_phys(pfn) | size | addr) & ~SUPERSECTION_MASK)) {
 		area->flags |= VM_ARM_SECTION_MAPPING;