allwinner: H6: Fix GPIO and CCU memory map addresses

The base address for both the GPIO and the clock unit of the H6 memory map
have been typo-ed. Fix them to match the Linux DT and the manual.

The H6 code use neither of them, so this doesn't change or fix anything
in the real world, but should be corrected anyway.

The issue was found and reported by Github user "armlabs".

Change-Id: Ic6fdfb732ce1cfc54cbb927718035624a06a9e08
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

plat/allwinner/sun50i_h6/include/sunxi_mmap.h

@@ -29,9 +29,9 @@
 #define SUNXI_SID_BASE			0x03006000
 #define SUNXI_DMA_BASE			0x03002000
 #define SUNXI_MSGBOX_BASE		0x03003000
-#define SUNXI_CCU_BASE			0x03010000
+#define SUNXI_CCU_BASE			0x03001000
 #define SUNXI_CCU_SEC_SWITCH_REG	(SUNXI_CCU_BASE + 0xf00)
-#define SUNXI_PIO_BASE			0x030b0000
+#define SUNXI_PIO_BASE			0x0300b000
 #define SUNXI_TIMER_BASE		0x03009000
 #define SUNXI_WDOG_BASE			0x030090a0
 #define SUNXI_THS_BASE			0x05070400