soc: qcom: msm_minidump: Configurable Encryption support

Some regions registered cannot be encrypted in minidump due to some HW
limitations on sdxlemur. To work around this, make the encryption of
minidump regions configurable.

Change-Id: Ibd0899ecaacfda4bd8f05ce0b8eef05c731c18e3
Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Signed-off-by: Sayan Dey <quic_sayand@quicinc.com>