ARM: dts: aspeed: yosemite4: revise flash layout to 128MB

Revise flash layout to 128MB since we are using 1GB flash memory in our
project.

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/20240924094430.272074-3-Delphine_CC_Chiu@wiwynn.com


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