dt-bindings: clock: Add tabs to align code.

The "JZ4780_CLK_LCD0PIXCLK" and the "JZ4780_CLK_LCD1PIXCLK"
in the "jz4780.h" and the new added "JZ4780_CLK_EXCLK_DIV512"
in the previous patch is too long, add tabs to other lines
to align them.
Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com>
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Link: https://lore.kernel.org/r/20200725051136.58220-3-zhouyanjie@wanyeetech.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>