The following are the kwon issues in this version of firmware.  
1) SiI3726 may not recognize Seagate 1.5G HDD (LSI logic PHY) when the HDD is hot plugging 
2) SiI3726 with non-PM aware host may not recognize HDD when the HDD is hot plugging 

The following are the change from the previous version.  
- Remove SiI3726 initiated operations.
- Fix SRST and initial two RegFIS Problem.
- Drop Host Phy when Device 0 is plugged out.
- Fix SDB FIS with COMWAKE when it receives PM_REQ from the host
- Fix 3G HDD may be recognized as 1.5G HDD at hot plug

