ARM: dts: aspeed: yosemite4: Add i2c-mux for Management Board

Add I2C mux for Management Board to separate the I2C bus 35 for
updating CPLD firmware and I2C bus 34 for the other devices.

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/20240926033534.4174707-1-Delphine_CC_Chiu@wiwynn.com


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