dram-spd: Remove free()

free() is not needed since the memory is not dynamically allocated.

Change-Id: I90659722aaca6ced1e1cbc3db4180b0811205e95
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37940
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/vendorcode/cavium/bdk/libdram/dram-spd.c

@@ -105,7 +105,6 @@ int read_entire_spd(bdk_node_t node, dram_config_t *cfg, int lmc, int dimm)
             int64_t data = bdk_twsix_read_ia(node, bus, address, i, 4, 1);
             if (data < 0)
             {
-                free(spd_buf);
                 bdk_error("Failed to read SPD data at 0x%x\n", i + (bank << 8));
                 /* Restore the bank to zero */
                 if (bank)