soc/amd/picasso: Remove some empty strings

Change-Id: If1ff88010f8bf941ec6a76019c4b6a4cb9b31093
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49815
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/soc/amd/picasso/Makefile.inc b/src/soc/amd/picasso/Makefile.inc
index a0f3ec4..8631dfd 100644
--- a/src/soc/amd/picasso/Makefile.inc
+++ b/src/soc/amd/picasso/Makefile.inc
@@ -226,7 +226,6 @@
 		$(OPT_PSP_LOAD_MP2_FW) \
 		$(OPT_PSP_LOAD_S0I3_FW) \
 		$(OPT_WHITELIST_FILE) \
-		$(OPT_SEC_DEBUG_FILE) \
 		$(OPT_PSP_SHAREDMEM_BASE) \
 		$(OPT_PSP_SHAREDMEM_SIZE) \
 		--combo-capable \
@@ -249,7 +248,6 @@
 	rm -f $@
 	@printf "    AMDFWTOOL  $(subst $(obj)/,,$(@))\n"
 	$(AMDFWTOOL) \
-		$(OPT_PSPBTLDR_FILE) \
 		$(AMDFW_COMMON_ARGS) \
 		$(OPT_APOB0_NV_SIZE) \
 		$(OPT_APOB0_NV_BASE) \