clk: ti: dra7: fix kernel boot with arg 'clocksource=gp_timer'

The OMAP Platform code provides possibility to select GP Timer as
default clocksource instead of counter_32K by using bootcmd parameter
'clocksource', but the system will crash during early boot when this
option is used on dra7 or omap5 platforms, because it will hit BUG()
statement:

omap2_gptimer_clocksource_init
->BUG_ON(res);

This happens because clk_dev alias "sys_clkin_ck" is not registered.
Hence, fix it by adding missing "sys_clkin_ck" clk_dev aliases
definitions for omap5 and dra7.

Acked-by: Tero Kristo <[e-mail]>
Cc: Tony Lindgren <[e-mail]>
Signed-off-by: Grygorii Strashko <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/ti/clk-54xx.c

···
 	DT_CLK("usbhs_omap", "usbtll_fck", "dummy_ck"),
 	DT_CLK("omap_wdt", "ick", "dummy_ck"),
 	DT_CLK(NULL, "timer_32k_ck", "sys_32k_ck"),
+	DT_CLK(NULL, "sys_clkin_ck", "sys_clkin"),
 	DT_CLK("4ae18000.timer", "timer_sys_ck", "sys_clkin"),
 	DT_CLK("48032000.timer", "timer_sys_ck", "sys_clkin"),
 	DT_CLK("48034000.timer", "timer_sys_ck", "sys_clkin"),

drivers/clk/ti/clk-7xx.c

···
 	DT_CLK("usbhs_omap", "usbtll_fck", "dummy_ck"),
 	DT_CLK("omap_wdt", "ick", "dummy_ck"),
 	DT_CLK(NULL, "timer_32k_ck", "sys_32k_ck"),
+	DT_CLK(NULL, "sys_clkin_ck", "timer_sys_clk_div"),
 	DT_CLK("4ae18000.timer", "timer_sys_ck", "timer_sys_clk_div"),
 	DT_CLK("48032000.timer", "timer_sys_ck", "timer_sys_clk_div"),
 	DT_CLK("48034000.timer", "timer_sys_ck", "timer_sys_clk_div"),