hi846: disable lens shading correction

As Sebastian found, this helps with color errors we see. Let's disable
this since we don't use OTP yet in order to set gain based on the
OTP lens shading correction data.
2 jobs for hi846_updates_20210608 in 123 minutes and 18 seconds (queued for 16 minutes and 32 seconds)
Status Job ID Name Coverage
  Build
passed #352694
librem5
build:aarch64

00:55:11

passed #352695
librem5:arm64
build:deb

01:08:06