soc: qcom: Add new scm API support in function scm_set_boot_addr

The SCM library now provides a new API that implements
a secure world syscall interface. Add support for
this new API in function scm_set_boot_addr.

Change-Id: I2137ae847098a0afb9d26f53f8f62dc5c997d43b
Signed-off-by: Jaiju Yesudasan <cjaijuy@codeaurora.org>