arm64: defconfig: Add SM8450 GCC config

Add the SM8450 GCC config as built-in so that platform can boot to shell
with defconfig
Signed-off-by: NVinod Koul <vkoul@kernel.org>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211216065444.650357-2-vkoul@kernel.org

arch/arm64/configs/defconfig

@@ -1003,6 +1003,7 @@ CONFIG_SDM_DISPCC_845=y
 CONFIG_SM_GCC_8150=y
 CONFIG_SM_GCC_8250=y
 CONFIG_SM_GCC_8350=y
+CONFIG_SM_GCC_8450=y
 CONFIG_SM_GPUCC_8150=y
 CONFIG_SM_GPUCC_8250=y
 CONFIG_SM_DISPCC_8250=y