riscv: defconfig: sophgo: enable clks for sg2042

Enable clk generators for sg2042 due to many peripherals rely on
these clocks.

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

Author: unicornx

arch/riscv/configs/defconfig

@@ -249,6 +249,9 @@ CONFIG_VIRTIO_BALLOON=y
 CONFIG_VIRTIO_INPUT=y
 CONFIG_VIRTIO_MMIO=y
 CONFIG_CLK_SOPHGO_CV1800=y
+CONFIG_CLK_SOPHGO_SG2042_PLL=y
+CONFIG_CLK_SOPHGO_SG2042_CLKGEN=y
+CONFIG_CLK_SOPHGO_SG2042_RPGATE=y
 CONFIG_SUN8I_DE2_CCU=m
 CONFIG_RENESAS_OSTM=y
 CONFIG_SUN50I_IOMMU=y