media: gpio-ir-tx: fix transmit with long spaces on Orange Pi PC

media: gpio-ir-tx: fix transmit with long spaces on Orange Pi PC

BugLink: https://bugs.launchpad.net/bugs/1969110
commit 5ad05ecad4326ddaa26a83ba2233a67be24c1aaa upstream.

Calling udelay for than 1000us does not always yield the correct
results.

Cc: stable@vger.kernel.org
Reported-by: Михаил <vrserver1@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 0a45148635f8f5d4b26e8c1a0e69719605914eb3)
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>