[MIPS] Fix yosemite build error

<linux/mm.h> didn't pickup the definition of PKMAP_BASE from fixmap.h, ugh.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

include/asm-mips/highmem.h

@@ -39,7 +39,6 @@ extern pte_t *pkmap_page_table;
  * easily, subsequent pte tables have to be allocated in one physical
  * chunk of RAM.
  */
-#define PKMAP_BASE (0xfe000000UL)
 #define LAST_PKMAP 1024
 #define LAST_PKMAP_MASK (LAST_PKMAP-1)
 #define PKMAP_NR(virt)  ((virt-PKMAP_BASE) >> PAGE_SHIFT)

include/asm-mips/pgtable-32.h

@@ -65,6 +65,8 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
 
 #define VMALLOC_START     MAP_BASE
 
+#define PKMAP_BASE		(0xfe000000UL)
+
 #ifdef CONFIG_HIGHMEM
 # define VMALLOC_END	(PKMAP_BASE-2*PAGE_SIZE)
 #else