ARM: imx8m: Deduplicate CAAM init with arch_misc_init() call

Instead of duplicating code implemented by i.MX8M version of arch_misc_init()
in every board, enable CONFIG_ARCH_MISC_INIT and call arch_misc_init() from
spl_board_init(). This removes the duplication. No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/board/freescale/imx8mm_evk/spl.c b/board/freescale/imx8mm_evk/spl.c
index e2eb142..e0e97c7 100644
--- a/board/freescale/imx8mm_evk/spl.c
+++ b/board/freescale/imx8mm_evk/spl.c
@@ -53,15 +53,7 @@
 
 void spl_board_init(void)
 {
-	if (IS_ENABLED(CONFIG_FSL_CAAM)) {
-		struct udevice *dev;
-		int ret;
-
-		ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev);
-		if (ret)
-			printf("Failed to initialize caam_jr: %d\n", ret);
-	}
-	puts("Normal Boot\n");
+	arch_misc_init();
 }
 
 #ifdef CONFIG_SPL_LOAD_FIT
diff --git a/board/freescale/imx8mn_evk/spl.c b/board/freescale/imx8mn_evk/spl.c
index c0bfb67..380abec 100644
--- a/board/freescale/imx8mn_evk/spl.c
+++ b/board/freescale/imx8mn_evk/spl.c
@@ -49,11 +49,8 @@
 	struct udevice *dev;
 	int ret;
 
-	if (IS_ENABLED(CONFIG_FSL_CAAM)) {
-		ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev);
-		if (ret)
-			printf("Failed to initialize caam_jr: %d\n", ret);
-	}
+	arch_misc_init();
+
 	puts("Normal Boot\n");
 
 	ret = uclass_get_device_by_name(UCLASS_CLK,
diff --git a/board/freescale/imx8mp_evk/spl.c b/board/freescale/imx8mp_evk/spl.c
index 719b1f6..f1b2854 100644
--- a/board/freescale/imx8mp_evk/spl.c
+++ b/board/freescale/imx8mp_evk/spl.c
@@ -37,14 +37,8 @@
 
 void spl_board_init(void)
 {
-	if (IS_ENABLED(CONFIG_FSL_CAAM)) {
-		struct udevice *dev;
-		int ret;
+	arch_misc_init();
 
-		ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev);
-		if (ret)
-			printf("Failed to initialize caam_jr: %d\n", ret);
-	}
 	/*
 	 * Set GIC clock to 500Mhz for OD VDD_SOC. Kernel driver does
 	 * not allow to change it. Should set the clock after PMIC