soc/amd/common/block/graphics: Add missing pci_rom_free()

pci_rom_probe() can allocate memory when mapping a CBFS
file, so pci_rom_free() should be called before leaving
the function.

BUG=b:278264488
TEST=Build and run with additional debug prints added
to confirm that data are correctly unmapped

Change-Id: Ie6fbbfd36f0974551befef4d08423a8148e151e7
Signed-off-by: Grzegorz Bernacki <bernacki@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74779
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Tim Van Patten <timvp@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Himanshu Sahdev <himanshu.sahdev@intel.com>

0 files changed, 0 insertions, 0 deletions