ARM: mvebu: add Armada 375 A0 revision definition

Now that we have access to Armada 375 A0 platforms, we can add the
corresponding revision definition in mvebu-soc-id.h.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1399302326-6917-4-git-send-email-thomas.petazzoni@free-electrons.comSigned-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/mach-mvebu/mvebu-soc-id.h

@@ -22,6 +22,7 @@
 
 /* Armada 375 */
 #define ARMADA_375_Z1_REV   0x0
+#define ARMADA_375_A0_REV   0x3
 
 #ifdef CONFIG_ARCH_MVEBU
 int mvebu_get_soc_id(u32 *dev, u32 *rev);