tegra: Move clock_early_init() to arch_cpu_init()

The clock init is not board specific, so move it into
the cpu code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

arch/arm/cpu/armv7/tegra2/board.c

@@ -84,6 +84,9 @@ int arch_cpu_init(void)
 	/* We didn't do this init in start.S, so do it now */
 	cpu_init_cp15();
 
+	/* Initialize essential common plls */
+	clock_early_init();
+
 	return 0;
 }
 #endif

board/nvidia/common/board.c

@@ -143,9 +143,6 @@ int board_early_init_f(void)
 	uart_ids |= UARTD;
 #endif
 
-	/* Initialize essential common plls */
-	clock_early_init();
-
 	/* Initialize UART clocks */
 	clock_init_uart(uart_ids);