toolchain: linker: IAR fix for new linker optimization options

# Override the default CMake's IAR ILINK linker signature

# The default behaviour of these new optimization flags for the linker

# is to use the compiler optimization flags if no flags are set.

# This does not work for IAR tools as there are no optimization flags

# for the linker, and leaving the property empty causes it to be

# filled with the compiler flags.

# This workaround adds extra info to the map file only so should not

# affect the generated code

# To have this working properly, either the automatic use of compiler

# flags must be removed, or we add some kind of dummy do nothing

# command line option to the linker.

# Either way, as this is causing an error right now, we use this

# temporary workaround.

set_property(TARGET linker PROPERTY no_optimization --entry_list_in_address_order)

set_property(TARGET linker PROPERTY optimization_debug --entry_list_in_address_order)

set_property(TARGET linker PROPERTY optimization_speed --entry_list_in_address_order)

set_property(TARGET linker PROPERTY optimization_size --entry_list_in_address_order)

set_property(TARGET linker PROPERTY optimization_size_aggressive --entry_list_in_address_order)

string(APPEND CMAKE_C_LINK_FLAGS --no-wrap-diagnostics)

if(CONFIG_IAR_DATA_INIT)