DaVinci DA850: UART2 clock ID comes from ASYNC3

On the DA830, UART2's clock is derived from PLL controller 0 output 2.
On the DA850, it is in the ASYNC3 group, and may be switched between PLL
controller 0 or 1. Fix the definition of the ID to match.

Signed-off-by: Laurence Withers <lwithers@guralp.com>
Cc: Tom Rini <trini@ti.com>
Cc: Prabhakar Lad <prabhakar.csengg@gmail.com>

arch/arm/include/asm/arch-davinci/hardware.h

@@ -467,7 +467,6 @@ enum davinci_clk_ids {
 	DAVINCI_MMC_CLKID			= DAVINCI_PLL0_SYSCLK2,
 	DAVINCI_SPI0_CLKID			= DAVINCI_PLL0_SYSCLK2,
 	DAVINCI_MMCSD_CLKID			= DAVINCI_PLL0_SYSCLK2,
-	DAVINCI_UART2_CLKID			= DAVINCI_PLL0_SYSCLK2,
 
 	/* special clock ID - output of PLL multiplier */
 	DAVINCI_PLLM_CLKID			= 0x0FF,
@@ -479,6 +478,9 @@ enum davinci_clk_ids {
 	DAVINCI_AUXCLK_CLKID			= 0x101,
 };
 
+#define DAVINCI_UART2_CLKID	(cpu_is_da830() ? DAVINCI_PLL0_SYSCLK2 \
+						: get_async3_src())
+
 #define DAVINCI_SPI1_CLKID	(cpu_is_da830() ? DAVINCI_PLL0_SYSCLK2 \
 						: get_async3_src())