[Kernel][MI350] Add bias, alibi bias and sink to flash attention

[amd-nprotaso]

Add bias, alibi bias and sink to flash attention 950gfx implementation.
performance: D=128 H=32 H_KV=8 dtype=torch.bfloat16
Without bias and alibi

B	seq	mode	causal	GFLOP	new ms	main ms	aiter ms	new/main	new/ait	new TF	main TF	aiter TF
1	512	dense	0	4.3	0.0248	0.0240	0.0355	0.97x	1.43x	172.9	178.8	121.1
1	512	dense	1	2.2	0.0243	0.0237	0.0451	0.98x	1.86x	88.5	90.6	47.7
1	1024	dense	0	17.2	0.0351	0.0352	0.0466	1.00x	1.33x	489.5	488.4	368.6
1	1024	dense	1	8.6	0.0345	0.0355	0.0591	1.03x	1.71x	249.2	242.4	145.5
1	2048	dense	0	68.7	0.0815	0.0822	0.0970	1.01x	1.19x	843.2	835.6	708.2
1	2048	dense	1	34.4	0.0614	0.0631	0.0817	1.03x	1.33x	560.1	544.7	421.0
1	4096	dense	0	274.9	0.2792	0.2804	0.3036	1.00x	1.09x	984.5	980.2	905.3
1	4096	dense	1	137.5	0.1749	0.1765	0.1778	1.01x	1.02x	786.0	778.8	773.2
1	8192	dense	0	1099.5	1.0471	1.0548	1.1178	1.01x	1.07x	1050.1	1042.4	983.7
1	8192	dense	1	549.8	0.5903	0.5958	0.5960	1.01x	1.01x	931.4	922.8	922.5
1	16384	dense	0	4398.0	4.1278	4.1669	4.3691	1.01x	1.06x	1065.5	1055.5	1006.6
1	16384	dense	1	2199.2	2.1678	2.1890	2.2426	1.01x	1.03x	1014.5	1004.6	980.6
1	32768	dense	0	17592.2	16.4058	16.5720	17.2883	1.01x	1.05x	1072.3	1061.6	1017.6
1	32768	dense	1	8796.4	8.4807	8.5568	8.6957	1.01x	1.03x	1037.2	1028.0	1011.6
1	65536	dense	0	70368.7	65.6934	66.0745	68.8566	1.01x	1.05x	1071.2	1065.0	1022.0
1	65536	dense	1	35184.9	33.3594	33.6627	34.2810	1.01x	1.03x	1054.7	1045.2	1026.4

Bias:

B	seq	mode	causal	GFLOP	new ms	main ms	aiter ms	new/main	new/ait	new TF	main TF	aiter TF
1	512	dense	0	4.3	0.0380	0.0240	0.0401	0.63x	1.06x	112.9	178.8	107.0
1	512	dense	1	2.2	0.0390	0.0237	0.0407	0.61x	1.05x	55.2	90.6	52.8
1	1024	dense	0	17.2	0.0665	0.0352	0.0711	0.53x	1.07x	258.3	488.4	241.6
1	1024	dense	1	8.6	0.0702	0.0355	0.0716	0.51x	1.02x	122.5	242.4	120.1
1	2048	dense	0	68.7	0.1321	0.0822	0.2204	0.62x	1.67x	520.2	835.6	311.8
1	2048	dense	1	34.4	0.1310	0.0631	0.1335	0.48x	1.02x	262.5	544.7	257.5
1	4096	dense	0	274.9	0.4838	0.2804	0.8058	0.58x	1.67x	568.2	980.2	341.1
1	4096	dense	1	137.5	0.3750	0.1765	0.4393	0.47x	1.17x	366.6	778.8	312.9
1	8192	dense	0	1099.5	2.0100	1.0548	3.0922	0.52x	1.54x	547.0	1042.4	355.6
1	8192	dense	1	549.8	1.2518	0.5958	1.6288	0.48x	1.30x	439.2	922.8	337.6
1	16384	dense	0	4398.0	7.9285	4.1669	12.1398	0.53x	1.53x	554.7	1055.5	362.3
1	16384	dense	1	2199.2	4.8240	2.1890	6.3136	0.45x	1.31x	455.9	1004.6	348.3
1	32768	dense	0	17592.2	30.6325	16.5720	48.2565	0.54

Alibi:

B	seq	mode	causal	GFLOP	new ms	main ms	aiter ms	new/main	new/ait	new TF	main TF	aiter TF
1	512	dense	0	4.3	0.0301	0.0240	0.0485	0.80x	1.61x	142.9	178.8	88.5
1	512	dense	1	2.2	0.0283	0.0237	0.0368	0.84x	1.30x	76.0	90.6	58.5
1	1024	dense	0	17.2	0.0487	0.0352	0.0547	0.72x	1.12x	352.9	488.4	314.2
1	1024	dense	1	8.6	0.0466	0.0355	0.0570	0.76x	1.22x	184.5	242.4	150.8
1	2048	dense	0	68.7	0.0988	0.0822	0.1236	0.83x	1.25x	695.7	835.6	556.0
1	2048	dense	1	34.4	0.0872	0.0631	0.0971	0.72x	1.11x	394.2	544.7	354.0
1	4096	dense	0	274.9	0.3309	0.2804	0.4089	0.85x	1.24x	830.7	980.2	672.2
1	4096	dense	1	137.5	0.2439	0.1765	0.2511	0.72x	1.03x	563.7	778.8	547.4
1	8192	dense	0	1099.5	1.2388	1.0548	1.5123	0.85x	1.22x	887.6	1042.4	727.0
1	8192	dense	1	549.8	0.8014	0.5958	0.8210	0.74x	1.02x	686.1	922.8	669.7
1	16384	dense	0	4398.0	4.8249	4.1669	5.8702	0.86x	1.22x	911.5	1055.5	749.2
1	16384	dense	1	2199.2	2.9316	2.1890	3.1826	0.75x	1.09x	750.2	1004.6	691.0
1	32768	dense	0	17592.2	19.0073	16.5720	22.9100	0.87x	1.21x	925.6	1061.6	767.9
1	32768	dense	1	8796.4	11.1354	8.5568	12.2412	0.77x	1.10x	789.9	1028.0	718.6
1	65536	dense	0	70368.7	75.9698	66.0745	91.4092	0.87x	1.20x	926.3	1065.0	769.8
1	65536	dense	1	35184.9	43.5166	33.6627	49.1306	0.77x	1.13x	808.5	1045.2	716.2