[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/au1000/common/setup.c b/arch/mips/au1000/common/setup.c
index eb6026e..97165b6 100644
--- a/arch/mips/au1000/common/setup.c
+++ b/arch/mips/au1000/common/setup.c
@@ -55,7 +55,7 @@
 extern void au1xxx_timer_setup(struct irqaction *irq);
 extern void set_cpuspec(void);
 
-void __init plat_setup(void)
+void __init plat_mem_setup(void)
 {
 	struct	cpu_spec *sp;
 	char *argptr;