ARM: keystone: move SoC sources to mach-keystone

Move
arch/arm/cpu/armv7/keystone/* -> arch/arm/mach-keystone/*

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9302b2a..083823e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -724,7 +724,7 @@
 
 source "arch/arm/mach-highbank/Kconfig"
 
-source "arch/arm/cpu/armv7/keystone/Kconfig"
+source "arch/arm/mach-keystone/Kconfig"
 
 source "arch/arm/mach-kirkwood/Kconfig"