MAINTAINER: Include linux-arm-msm for Qualcomm RTC patches

Add Qualcomm RTC driver to the linux-arm-msm list, to ensure that
members of the Qualcomm community gets Cc'ed, to assist with reviews
etc.

Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Link: https://lore.kernel.org/r/20240319-maintainer-msm-add-rtc-v1-1-3a4f7d41b4d4@quicinc.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>