[coreboot] #112: probe_flash calculates base address before final value of size is known

[coreboot]

#112: probe_flash calculates base address before final value of size is known
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   Reporter:  [e-mail]   |          Owner:  somebody
       Type:  defect              |         Status:  new     
   Priority:  major               |      Milestone:          
  Component:  flashrom            |        Version:  v2      
   Keywords:  probe_flash mmap    |   Dependencies:          
Patchstatus:  patch needs review  |  
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 Found thanks to segher in #coreboot.

In probe_flash(), flash_baseaddr is set before the getpagesize() > size
 check, thus can be invalid, causing mmap issues.