feat(rdv3): introduce platform handler for Group0 interrupt

This patch introduces a handler for RD-V3 variants to handle Group0
secure interrupts. Currently, it is empty but serves as a placeholder
for future Group0 interrupt sources.

Signed-off-by: Nishant Sharma <nishant.sharma@arm.com>
Signed-off-by: Rakshit Goyal <rakshit.goyal@arm.com>
Change-Id: Ifa418094f6075a6cdc33e63eec1825103bbf6d68
1 file changed