AA: ar71xx: fix bad RX sensitivity on newer TL-WDR4300 boards
Backport of r39392.
On recent TL-WDR4300 boards the external LNAs of the 2.4GHz
interface are connected to GPIO lines. Because these GPIO
lines are disabled by default, the RX sensitivity of the
device is quite bad.
Setup the GPIOs of the external LNAs to fix the issue.
[Backport note: the 'ath79_wmac_set_ext_lna_gpio' function
is not available in AA, use the 'gpio_request_one' instead.]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 39408
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