cfg80211: honour V=1 in certificate code generation

When we generate the code for built-in certificates, honour
the V=1 build option to print out the script doing it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20210827131112.dc5492458d55.Idefe4ce8f9681a5ad576d3c6e57c7bff142244de@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/Makefile

@@ -26,7 +26,7 @@ endif
 
 $(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.hex)
 	@$(kecho) "  GEN     $@"
-	@(echo '#include "reg.h"'; \
+	$(Q)(echo '#include "reg.h"'; \
 	  echo 'const u8 shipped_regdb_certs[] = {'; \
 	  echo | cat - $^ ; \
 	  echo '};'; \
@@ -36,7 +36,7 @@ $(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.hex)
 $(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%) \
 		      $(wildcard $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%)/*.x509)
 	@$(kecho) "  GEN     $@"
-	@(set -e; \
+	$(Q)(set -e; \
 	  allf=""; \
 	  for f in $^ ; do \
 	      test -f $$f || continue;\