clk: imx: pllv3: set div_mask differently if PLLV3 is GENERIC or USB

div_mask is different for GENERIC and USB pll, so set it according.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c
index d1e4c3f..02c75c3 100644
--- a/drivers/clk/imx/clk-pllv3.c
+++ b/drivers/clk/imx/clk-pllv3.c
@@ -55,9 +55,11 @@
 	switch (type) {
 	case IMX_PLLV3_GENERIC:
 		drv_name = UBOOT_DM_CLK_IMX_PLLV3_GENERIC;
+		pll->div_shift = 0;
 		break;
 	case IMX_PLLV3_USB:
 		drv_name = UBOOT_DM_CLK_IMX_PLLV3_USB;
+		pll->div_shift = 1;
 		break;
 	default:
 		kfree(pll);