web: bd79104: driver is not created by us. We only updated existing driver

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>

Author: M-Vaittinen

Sensors/BD79104/README.md

@@ -7,6 +7,7 @@ compatible: rohm,bd79104
 devicetype: adc
 spifreq: 20000000
 dtsupply: [vdd, iovdd]
+upstreamdriverexisted: true
 upstreamlink: https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/iio/adc/ti-adc128s052.c
 upstreamed: v6.16-rc1
 issuelink: https://github.com/RohmSemiconductor/Linux-Kernel-Sensor-Drivers/issues?q=is%3Aissue+repo%3ALinux-Kernel-Sensor-Drivers+BD79104+in%3Atitle