clk: sprd: don't gate uart console clock

Don't gate uart1_eb which provides console clock, gating that clock would
make serial stop working if serial driver didn't enable that explicitly.

Fixes: 0e4b8a23

 ("clk: sprd: add clocks support for SC9863A")
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lkml.kernel.org/r/20200408020234.31764-1-zhang.lyra@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>