ARM: smp_twd: convert to use CLKSRC_OF init

ARM: smp_twd: convert to use CLKSRC_OF init

Now that we have OF based init with CLKSRC_OF, convert smp_twd init
function to use it and covert all callers of
twd_local_timer_of_register.

Signed-off-by: Rob Herring <[email protected]>
Cc: Shawn Guo <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Russell King <[email protected]>
Cc: Viresh Kumar <[email protected]>
Cc: Shiraz Hashim <[email protected]>
Cc: Srinidhi Kasagar <[email protected]>
Cc: John Stultz <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Reviewed-by: Stephen Warren <[email protected]>
Acked-by: Santosh Shilimkar <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Acked-by: Linus Walleij <[email protected]>