add support for STM32F413

[m-schwerin]

• [ X] Programmer/board type: Stlink/v2
• [ X] Programmer firmware version: V2J27S6
• [ X] Operating system: Ubuntu 16.04
• [ X] Stlink tools version and/or git commit hash: eea16d7
• [ X] Stlink commandline tool name: #st-flash
• [ X] Target chip (and optional board): STM32F413VHT6 (custom PCB)

Output after making changes:
st-flash --format ihex read DUMP.hex 0x08000000 0xB500

st-flash 1.3.0-3-geea16d7
2017-01-30T00:49:16 INFO /home/mike/src/stlink/src/usb.c: -- exit_dfu_mode
2017-01-30T00:49:16 INFO /home/mike/src/stlink/src/common.c: Loading device parameters....
2017-01-30T00:49:16 INFO /home/mike/src/stlink/src/common.c: Device connected is: F4 device, id 0x10006463
2017-01-30T00:49:16 INFO /home/mike/src/stlink/src/common.c: SRAM size: 0x50000 bytes (320 KiB), Flash: 0x180000 bytes (1536 KiB) in pages of 16384 ###bytes
#549 #549

[xor-gate]

Nice catch, thank you for your contribution. I will close this as soon we have merged.