board: phytec: phycore_imx8mp: Set VDD_ARM to 0,95V

Increase VDD_ARM to prevent timing issues as VDD_SOC is
used in OD mode. Also increase GIC clock.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/phycore-imx8mp_defconfig b/configs/phycore-imx8mp_defconfig
index a22f5e0..89c2ac9 100644
--- a/configs/phycore-imx8mp_defconfig
+++ b/configs/phycore-imx8mp_defconfig
@@ -25,6 +25,7 @@
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg"
 CONFIG_DEFAULT_FDT_FILE="oftree"
 CONFIG_BOARD_LATE_INIT=y
+CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_BOOTROM_SUPPORT=y
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_SEPARATE_BSS=y