Move arch/ppc to arch/powerpc

As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>
diff --git a/MAKEALL b/MAKEALL
index fb1f7a3..4632750 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -489,7 +489,7 @@
 	${LIST_86xx}	\
 "
 
-LIST_ppc="		\
+LIST_powerpc="		\
 	${LIST_5xx}	\
 	${LIST_512x}	\
 	${LIST_5xxx}	\
@@ -505,6 +505,12 @@
 	${LIST_7xx}	\
 "
 
+# Alias "ppc" -> "powerpc" to not break compatibility with older scripts
+# still using "ppc" instead of "powerpc"
+LIST_ppc="		\
+	${LIST_powerpc}	\
+"
+
 #########################################################################
 ## StrongARM Systems
 #########################################################################
@@ -949,8 +955,8 @@
 
 #-----------------------------------------------------------------------
 
-#----- for now, just run PPC by default -----
-[ $# = 0 ] && set $LIST_ppc
+#----- for now, just run PowerPC by default -----
+[ $# = 0 ] && set $LIST_powerpc
 
 #-----------------------------------------------------------------------
 
@@ -1006,7 +1012,7 @@
 	|microblaze \
 	|mips|mips_el \
 	|nios|nios2 \
-	|ppc|5xx|5xxx|512x|8xx|8220|824x|8260|83xx|85xx|86xx|4xx|7xx|74xx|TSEC \
+	|ppc|powerpc|5xx|5xxx|512x|8xx|8220|824x|8260|83xx|85xx|86xx|4xx|7xx|74xx|TSEC \
 	|sh|sh2|sh3|sh4 \
 	|sparc \
 	|x86|I486 \