ARM: mvebu: Rename the ARCH_MVEBU menu option

The previous name "Marvell SOCs with Device Tree support" is a bit
ambiguous and not too informative for users. Instead, use a more
appropriate name.
Signed-off-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/mach-mvebu/Kconfig

 config ARCH_MVEBU
-	bool "Marvell SOCs with Device Tree support" if ARCH_MULTI_V7
+	bool "Marvell Engineering Business Unit (MVEBU) SoCs" if ARCH_MULTI_V7
 	select ARCH_SUPPORTS_BIG_ENDIAN
 	select CLKSRC_MMIO
 	select COMMON_CLK
@@ -19,7 +19,7 @@ config ARCH_MVEBU
 
 if ARCH_MVEBU
 
-menu "Marvell SOC with device tree"
+menu "Marvell EBU SoC variants"
 
 config MACH_ARMADA_370_XP
 	bool