Add Macronix MX25U6435F and MX25L6495F support

Dear sirs,

Please help to update the new Macronix SPI Flash support 
in the ~coreboot/src/driver/spi/macronix.c . 
        Thanks!

Alex Lu

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Macronix International Co., Ltd.

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CONFIDENTIALITY NOTE:

This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation.

Macronix International Co., Ltd.

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