Show VFO image "A" or "B" instead of "><" (DW on hold image) in DW mode after reception end.

[laggbits]

In double wait mode you can't determine which VFO received transmission if you were not looking at the screen.
Below changes makes status line display "A" or "B" for a couple of seconds instead of "><" sign.
Its not an issue but a small correction )

In "bitmaps.c"
I replaced "><" bitmap by "AB" bitmap. (BITMAP_TDR2[10])
(line: 206)

In "status.c"
I replaced:
memcpy(line + x + 3, BITMAP_TDR2, sizeof(BITMAP_TDR2));
by:
memcpy(line + x + 3, BITMAP_TDR2 + (gEeprom.RX_VFO * 5), 5);
(line: 115)