Dell Inspiron 660s BIOS PS-A07

Fixes:

X28:
1. BITS026557 Prompt twice msg when boot up from ODD and w/o press any key.
2. Change Deep sleep mode to support both S4 and S5 for Win 8.
3. Change Secure Boot load default behavior to meet spec.
4. Forbidden user to change boot mode to legacy when Secure Boot is enabled by BBS/BBS64 tools.

X29:
1. Change Deep sleep mode to support both S4 and S5 for Win 8.
2. Updated ePSA to 4220.10
3. Add PBK's workaround: SUT cannot enter S3 via power button after second time.


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