soc/amd/picasso: Fix PSP_SHAREDMEM_BASE

PSP_SHAREDMEM_BASE made the assumption that _psp_sharedmem_dram would
only match once. With CB:49332 there are now two symbols, and it was
grabbing the wrong one.

This change makes it so we match the exact symbol. It also switches to
using awk to simplify the code.

The bootblock.elf target that is added to the list of prerequisites also
creates the bootblock.map file that gets used to extract the base
address of the _psp_sharedmem_dram symbol.

BUG=b:181354692
TEST=Boot zork past bootblock

Fixes: 82d16b150ce3 ("memlayout: Store region sizes as separate symbols")
Suggested-by: Julius Werner <jwerner@chromium.org>
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I79675bd73f964282b54bca858830e26de64037c7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51300
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

0 files changed, 0 insertions, 0 deletions