flash/nor: Drop size argument of cfi_target_{read,write}_memory()
The size argument is always set to bank->bus_width and bank pointer
is now passed into cfi_target_{read,write}_memory(), so the size
can be accessed through the bank pointer inside the function instead
of being explicitly passed in.
Change-Id: I0abc1cc3bf513281c10cb5de7a21cb0e75cb7676 Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-on: http://openocd.zylin.com/5389 Tested-by: jenkins Reviewed-by: Tomas Vanek <vanekt@fbl.cz>