soc: qcom: mem_buf: import LKP.QCLINUX.1.0.r2-03800-kernel.0

Maxime Ripardrequested to merge
mripard/kmod-qcom-scmi:soc-mem-buf into el10iv

JIRA: https://issues.redhat.com/browse/VROOM-34034

This MR creates an out-of-tree module for the QCOM mem_buf's driver.

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