soc/amd/picasso: Drop unused OPT_PSPNVRAM_FILE

This change drops unused option OPT_PSPNVRAM_FILE from picasso
Makefile.

BUG=b:154880818
TEST=Verified that trembyle still boots to OS.

Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I64b328a92f5ee76e198a2ad3ec72d2cc4aeb9e91
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40684
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/picasso/Makefile.inc b/src/soc/amd/picasso/Makefile.inc
index 4991315..b428b5d 100644
--- a/src/soc/amd/picasso/Makefile.inc
+++ b/src/soc/amd/picasso/Makefile.inc
@@ -216,7 +216,6 @@
 
 OPT_AMD_PUBKEY_FILE=$(call add_opt_prefix, $(CONFIG_AMD_PUBKEY_FILE), --pubkey)
 OPT_PSPBTLDR_FILE=$(call add_opt_prefix, $(PSPBTLDR_FILE), --bootloader)
-OPT_PSPNVRAM_FILE=$(call add_opt_prefix, $(PSPNVRAM_FILE), --nvram)
 OPT_SMUFW1_SUB1_FILE=$(call add_opt_prefix, $(PSP_SMUFW1_SUB1_FILE), --subprogram 1 --smufirmware)
 OPT_SMUFW1_SUB2_FILE=$(call add_opt_prefix, $(PSP_SMUFW1_SUB2_FILE), --subprogram 2 --smufirmware)
 OPT_SMUFW2_SUB1_FILE=$(call add_opt_prefix, $(PSP_SMUFW2_SUB1_FILE), --subprogram 1 --smufirmware2)