[MIPS] Cleanup memory managment initialization.

Historically plat_mem_setup did the entire platform initialization.  This
was rather impractical because it meant plat_mem_setup had to get away
without any kind of memory allocator.  To keep old code from breaking
plat_setup was just renamed to plat_setup and a second platform
initialization hook for anything else was introduced.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 16c4b34..a6b490e 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -196,7 +196,7 @@
 extern void ip27_time_init(void);
 extern void ip27_reboot_setup(void);
 
-void __init plat_setup(void)
+void __init plat_mem_setup(void)
 {
 	hubreg_t p, e, n_mode;
 	nasid_t nid;