soc/amd/block/ivrs: Add NULL check for IVRS

Add NULL check for ivrs pointer before use.

Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Change-Id: Ibeb0ea3bcaa3512a93500588ad4f11046edee61f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75506
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>

0 files changed, 0 insertions, 0 deletions