[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/lasat/setup.c b/arch/mips/lasat/setup.c
index bb70a82..3f64277 100644
--- a/arch/mips/lasat/setup.c
+++ b/arch/mips/lasat/setup.c
@@ -155,7 +155,7 @@
 }
 #endif
 
-void __init plat_setup(void)
+void __init plat_mem_setup(void)
 {
 	int i;
 	lasat_misc  = &lasat_misc_info[mips_machtype];