powerpc: ipek01: convert to generic board

Also update maintainer info.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
diff --git a/board/ipek01/MAINTAINERS b/board/ipek01/MAINTAINERS
index 060f8a5..906d39e 100644
--- a/board/ipek01/MAINTAINERS
+++ b/board/ipek01/MAINTAINERS
@@ -1,5 +1,5 @@
 IPEK01 BOARD
-M:	Wolfgang Grandegger <wg@denx.de>
+M:	Anatolij Gustschin <agust@denx.de>
 S:	Maintained
 F:	board/ipek01/
 F:	include/configs/ipek01.h