fix: sata: clear IRQ status register only on read/write operations

	fix detection issues by setting the clearance of IRQ status register
	only on read/write operations.

	- Clearance of IRQ/ERR/FIS status registers was added in the patch:
	  "fix: ahci: add to read/write the clear IRQ/ERR status register
	   and FIS address register without this fix the AHCI read/write command
	   are failed"
	- Fix JIRA SYSTEMSW #1588

Change-Id: I518e54d60c4578dfbc6dc5f4d570b7b30bcbdb51
Signed-off-by: Omri Itach <omrii@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/16824
Tested-by: Star_Automation <star@marvell.com>
Reviewed-by: Nadav Haklai <nadavh@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/16884
1 file changed