[SPARC64]: MAX_PHYSADDR_BITS et al. really need to be 42 bits not 41.

Signed-off-by: David S. Miller <davem@davemloft.net>

include/asm-sparc64/sparsemem.h

@@ -4,8 +4,8 @@
 #ifdef __KERNEL__
 
 #define SECTION_SIZE_BITS       31
-#define MAX_PHYSADDR_BITS       41
-#define MAX_PHYSMEM_BITS        41
+#define MAX_PHYSADDR_BITS       42
+#define MAX_PHYSMEM_BITS        42
 
 #endif /* !(__KERNEL__) */