Add support for qNimble Quark with BOSSA compatible bootloader

[ben-qnimble]

Added a new device to list in Device.cpp for qNimble's new bootloader that is compatible with BOSSA. This device supports flashing up to 6MB with a page size of 256, so I increased the max size of the pages from 1024 (per plane) to 16384 in EfcFlash.cpp.

[shumatech]

Is this an FPGA with a hard core or is the processor discrete? This clearly not in the 15 year old SAM7X family. Where did the chip ID come from?

[ben-qnimble]

Sorry, I wasn't clear about this. This a discrete processor of an NXP i.MX RT1062. This processor does not have a built-in bootloader like the SAM-series processors. I've written a bootloader that emulates bootloader on the SAM7X device. I chose to emulate a SAM7X device because it had a large flash size and was relatively easy to emulate for read, write and verify of the flash. Since the device isn't a SAM7X chip, I thought it better to use a different chip ID. Since support for this device is tied to the bootloader, I thought it best to create a new chip ID that represents the bootloader. I created (what I believe is a unique ID of) "qN0" in ASCII with 0x00 padding (0x714e3000). This would be for qNimble Device series 0 compatible devices, which currently only includes the qNimble Quark.

Does this seem like a reasonable approach? Please let me know if you have any questions or suggestions.

[ben-qnimble]

I just wanted to check in and see if you had any comments / suggestion about the pull request or needed any additional information.

Thanks