x86: convert pageattr.c from round_up to roundup

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 65c6e46..0d254ad 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -78,7 +78,7 @@
 
 static inline unsigned long highmap_end_pfn(void)
 {
-	return __pa(round_up((unsigned long)_end, PMD_SIZE)) >> PAGE_SHIFT;
+	return __pa(roundup((unsigned long)_end, PMD_SIZE)) >> PAGE_SHIFT;
 }
 
 #endif