ARM: dts: aspeed: yosemite4: Revise quad mode to dual mode

Revise quad mode to dual mode to keep the write protect feature for the
SPI flash because the WP pin is the same pin with IO2 pin in quad mode.

Signed-off-by: Ricky CX Wu <ricky.cx.wu.wiwynn@gmail.com>
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
Link: https://patch.msgid.link/20240924094430.272074-2-Delphine_CC_Chiu@wiwynn.com


Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>