powerpc: Remove power3 from comments

There are still a few occurences where it remains, because it helps to
explain something that persists.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/lib/copyuser_64.S

@@ -461,8 +461,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD)
 /*
  * Routine to copy a whole page of data, optimized for POWER4.
  * On POWER4 it is more than 50% faster than the simple loop
- * above (following the .Ldst_aligned label) but it runs slightly
- * slower on POWER3.
+ * above (following the .Ldst_aligned label).
  */
 .Lcopy_page_4K:
 	std	r31,-32(1)

arch/powerpc/mm/mmu_context_hash32.c

@@ -2,7 +2,7 @@
  * This file contains the routines for handling the MMU on those
  * PowerPC implementations where the MMU substantially follows the
  * architecture specification.  This includes the 6xx, 7xx, 7xxx,
- * 8260, and POWER3 implementations but excludes the 8xx and 4xx.
+ * and 8260 implementations but excludes the 8xx and 4xx.
  *  -- paulus
  *
  *  Derived from arch/ppc/mm/init.c:

arch/powerpc/mm/ppc_mmu_32.c

@@ -2,7 +2,7 @@
  * This file contains the routines for handling the MMU on those
  * PowerPC implementations where the MMU substantially follows the
  * architecture specification.  This includes the 6xx, 7xx, 7xxx,
- * 8260, and POWER3 implementations but excludes the 8xx and 4xx.
+ * and 8260 implementations but excludes the 8xx and 4xx.
  *  -- paulus
  *
  *  Derived from arch/ppc/mm/init.c:

arch/powerpc/platforms/Kconfig.cputype

@@ -61,7 +61,7 @@ choice
 	help
 	  There are two families of 64 bit PowerPC chips supported.
 	  The most common ones are the desktop and server CPUs
-	  (POWER3, RS64, POWER4, POWER5, POWER5+, POWER6, ...)
+	  (POWER4, POWER5, 970, POWER5+, POWER6, POWER7, POWER8 ...)
 
 	  The other are the "embedded" processors compliant with the
 	  "Book 3E" variant of the architecture