sh: ioremap_64 needs after_bootmem.

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/mm/init.c

@@ -170,6 +170,7 @@ void __init paging_init(void)
 }
 
 static struct kcore_list kcore_mem, kcore_vmalloc;
+int after_bootmem = 0;
 
 void __init mem_init(void)
 {
@@ -214,6 +215,8 @@ void __init mem_init(void)
 	clear_page = clear_page_nommu;
 #endif
 
+	after_bootmem = 1;
+
 	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
 	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;
 	initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;