m68k: fix crufty 68000 and 68360 intro comments

Quite a few of the non-mmu specific support files have a pathname in the
title comments of the file. These files have moved around a bit over the
years, and most are no longer accurate. Remove the pathname and fix the
comments to include at least a short description of the files contents.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/arch/m68k/68360/head-rom.S b/arch/m68k/68360/head-rom.S
index dfc756d..b3a7e40 100644
--- a/arch/m68k/68360/head-rom.S
+++ b/arch/m68k/68360/head-rom.S
@@ -1,6 +1,5 @@
-/* arch/m68knommu/platform/68360/head-rom.S
- *
- * Startup code for Motorola 68360
+/*
+ * head-rom.S - startup code for Motorola 68360
  *
  * Copyright (C) SED Systems, a Division of Calian Ltd.
  * Based on: arch/m68knommu/platform/68328/pilot/crt0_rom.S