mvebu: a38x: drop duplicate platform id symbols

Use generic mvebu Kconfig symbols like all other mvebu boards.
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Signed-off-by: NStefan Roese <sr@denx.de>

arch/arm/mach-mvebu/Kconfig

@@ -148,6 +148,7 @@ config SYS_BOARD
 	default "ds414" if TARGET_DS414
 	default "maxbcm" if TARGET_MAXBCM
 	default "theadorable" if TARGET_THEADORABLE
+	default "a38x" if TARGET_CONTROLCENTERDC
 
 config SYS_CONFIG_NAME
 	default "clearfog" if TARGET_CLEARFOG
@@ -163,6 +164,7 @@ config SYS_CONFIG_NAME
 	default "theadorable" if TARGET_THEADORABLE
 	default "turris_omnia" if TARGET_TURRIS_OMNIA
 	default "turris_mox" if TARGET_TURRIS_MOX
+	default "controlcenterdc" if TARGET_CONTROLCENTERDC
 
 config SYS_VENDOR
 	default "Marvell" if TARGET_DB_MV784MP_GP
@@ -176,6 +178,7 @@ config SYS_VENDOR
 	default "Synology" if TARGET_DS414
 	default "CZ.NIC" if TARGET_TURRIS_OMNIA
 	default "CZ.NIC" if TARGET_TURRIS_MOX
+	default "gdsys" if TARGET_CONTROLCENTERDC
 
 config SYS_SOC
 	default "mvebu"

board/gdsys/a38x/Kconfig

 if TARGET_CONTROLCENTERDC
 
-config SYS_BOARD
-	default "a38x"
-
-config SYS_VENDOR
-	default "gdsys"
-
-config SYS_SOC
-	default "mvebu"
-
-config SYS_CONFIG_NAME
-	default "controlcenterdc"
-
 menu "Controlcenter DC board options"
 
 choice