clk: pxa: fix one of the pxa RTC clocks

[ Upstream commit 46acbcb4849b2ca2e6e975e7c8130c1d61c8fd0c ]

The pxa27x platforms have a single IP with 2 drivers, sa1100-rtc and
rtc-pxa drivers.

A previous patch fixed the sa1100-rtc case, but the pxa-rtc wasn't
fixed. This patch completes the previous one.

Fixes: 8b6d1034 ("clk: pxa: add missing pxa27x clocks for Irda and sa1100-rtc")
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Link: https://lkml.kernel.org/r/20191026194420.11918-1-robert.jarzmik@free.frSigned-off-by: NStephen Boyd <sboyd@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/clk/pxa/clk-pxa27x.c

@@ -463,6 +463,7 @@ struct dummy_clk {
 };
 static struct dummy_clk dummy_clks[] __initdata = {
 	DUMMY_CLK(NULL, "pxa27x-gpio", "osc_32_768khz"),
+	DUMMY_CLK(NULL, "pxa-rtc", "osc_32_768khz"),
 	DUMMY_CLK(NULL, "sa1100-rtc", "osc_32_768khz"),
 	DUMMY_CLK("UARTCLK", "pxa2xx-ir", "STUART"),
 };