powerpc/mm/radix: rename _PAGE_LARGE to R_PAGE_LARGE

This bit is only used by radix and it is nice to follow the naming style of having
bit name start with H_/R_ depending on which translation mode they are used.

No functional change in this patch.

Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index 952713d..83dc1cc 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -437,7 +437,7 @@ void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm,
 		return;
 	}
 
-	if (old_pte & _PAGE_LARGE)
+	if (old_pte & R_PAGE_LARGE)
 		radix__flush_tlb_page_psize(mm, address, MMU_PAGE_2M);
 	else
 		radix__flush_tlb_page_psize(mm, address, mmu_virtual_psize);