PHY BMAC Wait for Wake

1. If the Core Revision is 4
   1. Delay 5 usec
2. Otherwise
   1. If this a G PHY and the Core Revision is 5
      1. Delay 2000 usec
   2. Otherwise
      1. Delay 40 usec
   3. Spinwait for Shared Memory Location 0x040 to equal 4, wait a maximum of 1500 tries with 10 usec between tries