MIPS: Alchemy: remove SOC_AU1X00 in favor of MIPS_ALCHEMY

Remove the CONFIG_SOC_AU1X00 Kconfig symbol since its job can also be done
by MACH_ALCHEMY, now renamed to MIPS_ALCHEMY.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/1461/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/alchemy/Platform b/arch/mips/alchemy/Platform
index 495cc9a..0bf2b09 100644
--- a/arch/mips/alchemy/Platform
+++ b/arch/mips/alchemy/Platform
@@ -1,7 +1,7 @@
 #
 # Core Alchemy code
 #
-platform-$(CONFIG_MACH_ALCHEMY)	+= alchemy/common/
+platform-$(CONFIG_MIPS_ALCHEMY)	+= alchemy/common/
 
 
 #
@@ -106,4 +106,4 @@
 # compiler picks the board one.  If they don't, it will make sure
 # the alchemy generic gpio header is picked up.
 
-cflags-$(CONFIG_MACH_ALCHEMY)	+= -I$(srctree)/arch/mips/include/asm/mach-au1x00
+cflags-$(CONFIG_MIPS_ALCHEMY)	+= -I$(srctree)/arch/mips/include/asm/mach-au1x00