arm64: dts: qcom: sdm845-xiaomi-polaris: fix codec pin conf name

Fix typo in the codec's pin name to be configured.  Mismatched name
caused the pin configuration to be ignored.

Fixes: be497abe ("arm64: dts: qcom: Add support for Xiaomi Mi Mix2s")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Molly Sophia <mollysophia379@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220930192039.240486-3-krzysztof.kozlowski@linaro.org