Restore comments removed in tpruvot#38, translate them into English

The original line says "allocate XXXX bytes to adjust for X Warp."
Remove the number from comment since they are trivial

lyra2/cuda_lyra2.cu

@@ -555,10 +555,10 @@ void lyra2_cpu_hash_32(int thr_id, uint32_t threads, uint32_t startNounce, uint6
 		size_t shared_mem = 0;
 
 		if (gtx750ti)
-			// 8Warpに調整のため、8192バイト確保する
+			// suitable amount to adjust for 8warp
 			shared_mem = 8192;
 		else
-			// 10Warpに調整のため、6144バイト確保する
+			// suitable amount to adjust for 10warp
 			shared_mem = 6144;
 
 		lyra2_gpu_hash_32_1_sm5 <<< grid2, block2 >>> (threads, startNounce, (uint2*)d_hash);