firmware: qcom: scm: Add multiple download mode support

Currently, scm driver only supports full dump when download
mode is selected. Add support to enable minidump as well as
enable it along with fulldump.

Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Link: https://lore.kernel.org/r/20240715155655.1811178-2-quic_mojha@quicinc.com


Signed-off-by: Bjorn Andersson <andersson@kernel.org>