common: board_r: drop initr_addr_map wrapper

Add a return value to init_addr_map and use it directly in the
post-relocation init sequence, rather than using a wrapper stub.

Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 353dc4e..cb5b26c 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -138,7 +138,7 @@
 extern void _tlbia(void);		/* invalidate all TLB entries */
 
 #ifdef CONFIG_ADDR_MAP
-extern void init_addr_map(void);
+extern int init_addr_map(void);
 #endif
 
 typedef enum {