misc/cgo/test: add mipsx test case for #9400
misc/cgo/test: add mipsx test case for #9400

Change-Id: I7d0bc5093943b0744d865e91517ff6292f3b2f89
Reviewed-on: https://go-review.googlesource.com/34510
Run-TryBot: Cherry Zhang <d62e63aa42ce272d7b6a5055d97e942b33a34679@google.com>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Cherry Zhang <d62e63aa42ce272d7b6a5055d97e942b33a34679@google.com>

josharian/go,Cofyc/go,CAFxX/go,josharian/go,cloudflare/go,CAFxX/go,vsekhar/elastic-go,cloudflare/go,josharian/go,nawawi/go,Cofyc/go,codestation/go,akutz/go,nawawi/go,golang/go,CAFxX/go,linux-on-ibm-z/go,josharian/go,Cofyc/go,cloudflare/go,cloudflare/go,vsekhar/elastic-go,cloudflare/go,linux-on-ibm-z/go,vsekhar/elastic-go,golang/go,vsekhar/elastic-go,suncycheng/go,suncycheng/go,Cofyc/go,codestation/go,CAFxX/go,derekmarcotte/go,golang/go,polyverse-security/go,derekmarcotte/go,suncycheng/go,suncycheng/go,christopher-henderson/Go,Cofyc/go,derekmarcotte/go,akutz/go,cloudflare/go,derekmarcotte/go,golang/go,suncycheng/go,suncycheng/go,polyverse-security/go,codestation/go,codestation/go,polyverse-security/go,nawawi/go,linux-on-ibm-z/go,derekmarcotte/go,polyverse-security/go,derekmarcotte/go,codestation/go,vsekhar/elastic-go,vsekhar/elastic-go,golang/go,akutz/go,josharian/go,akutz/go,golang/go,ImJasonH/go,Cofyc/go,CAFxX/go,ImJasonH/go,ImJasonH/go,nawawi/go,CAFxX/go,ImJasonH/go,golang/go,polyverse-security/go,linux-on-ibm-z/go,CAFxX/go,akutz/go,codestation/go,golang/go,suncycheng/go,codestation/go,nawawi/go,polyverse-security/go,nawawi/go,cloudflare/go,linux-on-ibm-z/go,nawawi/go,akutz/go,CAFxX/go,Cofyc/go,ImJasonH/go,derekmarcotte/go,linux-on-ibm-z/go,josharian/go,linux-on-ibm-z/go,nawawi/go,josharian/go,codestation/go,polyverse-security/go,akutz/go,polyverse-security/go,cloudflare/go,derekmarcotte/go,Cofyc/go,vsekhar/elastic-go,ImJasonH/go,linux-on-ibm-z/go,vsekhar/elastic-go,suncycheng/go,ImJasonH/go,ImJasonH/go,josharian/go,akutz/go