ARM: imx: Enable CAAM on DH i.MX8M Plus DHCOM

Enable CAAM in U-Boot to make crypto available early in the boot process.

This has a side-effect that in case an older kernel version contains a
broken CAAM initialization timeout code, initialization in bootloader
will help that old kernel version function correctly.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/imx8mp_dhcom_pdk2_defconfig b/configs/imx8mp_dhcom_pdk2_defconfig
index a77139a..0948134 100644
--- a/configs/imx8mp_dhcom_pdk2_defconfig
+++ b/configs/imx8mp_dhcom_pdk2_defconfig
@@ -160,6 +160,7 @@
 CONFIG_CLK_COMPOSITE_CCF=y
 CONFIG_SPL_CLK_IMX8MP=y
 CONFIG_CLK_IMX8MP=y
+CONFIG_FSL_CAAM=y
 CONFIG_DFU_TFTP=y
 CONFIG_DFU_TIMEOUT=y
 CONFIG_DFU_MMC=y