mips: disable all features in configure if no cpu is matched

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

configure

@@ -4131,6 +4131,15 @@ elif enabled mips; then
             disable mips64r6
             disable msa
         ;;
+        *)
+            disable mipsfpu
+            disable mips32r2
+            disable mips32r5
+            disable mips64r6
+            disable mipsdspr1
+            disable mipsdspr2
+            disable msa
+        ;;
     esac
 
 elif enabled ppc; then