include: extend SetupHostCommand macro to accept more arguments

Commit d6d3db0543 added more gcc version probes, exceeding the argument
limit of the SetupHostCommand macro, leading to failing GCC/LLVM tests
on OS X.

Extend the handled number of arguments to restore proper functionality.

Fixes FS#1470
Fixes d6d3db0543 ("build: Improve GCC version detection")

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

include/prereq.mk

@@ -90,7 +90,8 @@ define SetupHostCommand
 	for cmd in $(call QuoteHostCommand,$(3)) $(call QuoteHostCommand,$(4)) \
 	           $(call QuoteHostCommand,$(5)) $(call QuoteHostCommand,$(6)) \
 	           $(call QuoteHostCommand,$(7)) $(call QuoteHostCommand,$(8)) \
-			   $(call QuoteHostCommand,$(9)); do \
+	           $(call QuoteHostCommand,$(9)) $(call QuoteHostCommand,$(10)) \
+	           $(call QuoteHostCommand,$(11)) $(call QuoteHostCommand,$(12)); do \
 		if [ -n "$$$$$$$$cmd" ]; then \
 			bin="$$$$$$$$(PATH="$(subst $(space),:,$(filter-out $(STAGING_DIR_HOST)/%,$(subst :,$(space),$(PATH))))" \
 				which "$$$$$$$${cmd%% *}")"; \