[AMDGPU][True16] set true16 mode as default on gfx110x (llvm#140736)

Add RealTrue16Insts to FeatureISAVersion11_0_Common and set true16 mode
as default on gfx110x.

Author: broxigarchen

llvm/lib/Target/AMDGPU/AMDGPU.td

@@ -1800,7 +1800,8 @@ def FeatureISAVersion11_0_Common : FeatureSet<
     [FeatureMSAALoadDstSelBug,
      FeatureVALUTransUseHazard,
      FeatureMADIntraFwdBug,
-     FeaturePrivEnabledTrap2NopBug])>;
+     FeaturePrivEnabledTrap2NopBug,
+     FeatureRealTrue16Insts])>;
 
 def FeatureISAVersion11_0_0 : FeatureSet<
   !listconcat(FeatureISAVersion11_0_Common.Features,