MIPS: Alchemy: Fix AU1100 interrupt numbers off-by-one

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/mach-au1x00/au1000.h

@@ -715,7 +715,7 @@ enum soc_au1500_ints {
 #ifdef CONFIG_SOC_AU1100
 enum soc_au1100_ints {
 	AU1100_FIRST_INT	= MIPS_CPU_IRQ_BASE + 8,
-	AU1100_UART0_INT,
+	AU1100_UART0_INT	= AU1100_FIRST_INT,
 	AU1100_UART1_INT,
 	AU1100_SD_INT,
 	AU1100_UART3_INT,