ME: adjust IA planes radio frequencies.

[Tarres]

The C-47, A-20 and B-17 use the UHF frequencies range instead of the VHF of the SRC522. All three of them were equipped with SCR522 VHF.

Corrected LUA (for their respective files):

B-17G (100-156Mhz)

line 1956: 124

line 1957: 156

line 1958: 100

C-47 (100-156Mhz)

Line 1055: 124

line 1056: 156

line 1057: 100

A-20 is reported I think, but anyway:

Line 1947: 124

line: 1948: 156

line 1949: 100

For the Ju-88 is the same so instead of use the UHF range, it´s better to use the FuG-16 frequencies:

line 1619: 38.4

line 1620: 42.4

line 1621: 38.4