MICRONFCBOARD fails to compile with mbed-dev source library

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Description

When trying to build blinky using the mbed-dev source library, the MICRONFCBOARD board fails to compile.

• Bug
• Priority: Major

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Bug

Toolchain:
ARM using the online IDE API

Expected behavior
Target compiles

Actual behavior
The following error is produced:
"/src/mbed-dev/targets/TARGET_NXP/TARGET_LPC11UXX/device/TOOLCHAIN_ARM_MICRO /TARGET_LPC11U34_421/LPC11U34.sct", line 4 (column 9): Error: L6235E: More than one section matches selector - cannot all be FIRST/LAST.

Steps to reproduce
Build MICRONFCBOARD using mbed-dev in the online compiler

[0xc0170]

It seems this target inherits from TARGET_LPC11U34_421, and both of these define own startup file, and system init. It should not, otherwise we get this error.