arm64: dts: qcom: ipq6018-cp01-c1: fix Micron SPI NOR compatible

The proper compatible for Micron n25q128a11 SPI NOR flash should include
vendor-prefix.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220521164550.91115-11-krzysztof.kozlowski@linaro.org