mariadb: update to 10.1.21.
mariadb: update to 10.1.21.

Fixes
* CVE-2016-6664
* CVE-2017-3312

And following CVEs affecting MySQL
* CVE-2017-3238
* CVE-2017-3243
* CVE-2017-3244
* CVE-2017-3257
* CVE-2017-3258
* CVE-2017-3265
* CVE-2017-3291
* CVE-2017-3312
* CVE-2017-3317
* CVE-2017-3318

gangsterakato/void-packages,coredumb/void-packages,coredumb/void-packages,opsaaspo/void-packages,coredumb/void-packages,gangsterakato/void-packages,ayghor/void-packages,liwakura/void-packages,Bubble-be/void-packages,EaterOfCode/void-packages,WKuipers/void-packages,EaterOfCode/void-packages,gangsterakato/void-packages,EaterOfCode/void-packages,liwakura/void-packages,coredumb/void-packages,kulinacs/void-packages,EaterOfCode/void-packages,NeoChontrix/void-packages,Bubble-be/void-packages,jprjr/void-packages,liwakura/void-packages,kulinacs/void-packages,ayghor/void-packages,opsaaspo/void-packages,kulinacs/void-packages,ayghor/void-packages,kulinacs/void-packages,floGik/void-packages,NeoChontrix/void-packages,WKuipers/void-packages,EaterOfCode/void-packages,necrophcodr/void-packages,juliendehos/void-packages,WKuipers/void-packages,floGik/void-packages,opsaaspo/void-packages,opsaaspo/void-packages,ayghor/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,Bubble-be/void-packages,jprjr/void-packages,floGik/void-packages,gangsterakato/void-packages,kulinacs/void-packages,ayghor/void-packages,ayghor/void-packages,gangsterakato/void-packages,juliendehos/void-packages,jprjr/void-packages,necrophcodr/void-packages,liwakura/void-packages,juliendehos/void-packages,jprjr/void-packages,gangsterakato/void-packages,liwakura/void-packages,coredumb/void-packages,Bubble-be/void-packages,juliendehos/void-packages,floGik/void-packages,floGik/void-packages,coredumb/void-packages,juliendehos/void-packages,NeoChontrix/void-packages,opsaaspo/void-packages,WKuipers/void-packages,necrophcodr/void-packages,WKuipers/void-packages,Bubble-be/void-packages,liwakura/void-packages,kulinacs/void-packages,WKuipers/void-packages,NeoChontrix/void-packages,opsaaspo/void-packages,NeoChontrix/void-packages,floGik/void-packages,juliendehos/void-packages,Bubble-be/void-packages,jprjr/void-packages,jprjr/void-packages