flash: NXP LPC11Uxx flash implementation

flash: NXP LPC11Uxx flash implementation

Extended the LPC17xx flash implementation in lpc2000.c to support LPC11Uxx devices.

Code is tested with ST-Link/V2 connected to NXP LPCXpresso LPC11U14
rev A board, bypassing (proprietary?) LPC-Link and using SWD directly
to target.

Added target configuration files for the ST-Link/V2 -> LPC11U14 scenario.

Change-Id: I5dc785cc6859a7f53a8275b7df2723d44c8ed15b
Signed-off-by: Jared Boone <jboone@earfeast.com>
Fixups to work with master:

	Add in iap_max_stack value
	Change transport to hla
	Switch to IRC in 'reset init' path

Signed-off-by: Keith Packard <keithp@keithp.com>