fix: timer: msys: fixed timer support by setting proper ref.clock

	* Timer code used 25Mhz as ref clock (not valid for MSYS platform)
	* MSYS AC3 and BC2 uses Tclk as ref clock for timer.

	- fixed Tclk for BC2 and AC3 (use 200Mhz instead of 250Mhz)
	- added routine to indicate necessity of 25Mhz ref clock
	- set MSYS to disable 25Mhz ref clock

Change-Id: Ifaf2e6750bf4f6397ea9e1106de7b07272efd2f4
Signed-off-by: Omri Itach <omrii@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/18437
Tested-by: Star_Automation <star@marvell.com>
Reviewed-by: Hanna Hawa <hannah@marvell.com>
Reviewed-by: Haim Boot <hayim@marvell.com>
13 files changed