imx9: configure M33 systick to 24M

The M33 systick should be 24M per reference mannual, so correct it.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx9/clock.c b/arch/arm/mach-imx/imx9/clock.c
index 04f3116..51aa259 100644
--- a/arch/arm/mach-imx/imx9/clock.c
+++ b/arch/arm/mach-imx/imx9/clock.c
@@ -700,8 +700,8 @@
 	ccm_clk_root_cfg(WAKEUP_AXI_CLK_ROOT, SYS_PLL_PFD2, 2);
 	/* SWO TRACE to 133M */
 	ccm_clk_root_cfg(SWO_TRACE_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3);
-	/* M33 systetick to 133M */
-	ccm_clk_root_cfg(M33_SYSTICK_CLK_ROOT, SYS_PLL_PFD1_DIV2, 3);
+	/* M33 systetick to 24M */
+	ccm_clk_root_cfg(M33_SYSTICK_CLK_ROOT, OSC_24M_CLK, 1);
 	/* NIC to 400M */
 	ccm_clk_root_cfg(NIC_CLK_ROOT, SYS_PLL_PFD1, 2);
 	/* NIC_APB to 133M */