Cleanups (#2631)

* Remove some duplicate code in fmha_fwd_appendkv_kernel.hpp

* Simplify two templated operator calls by having the templated types deduced automatically

* Simplify two GemmPipeline calls

* Fix GemmPipelineAgBgCrCompV4::GetName

* Refactor use of ArgParser in CK tile GEMM examples

* Update args in README.md to match the implementation in create_args

* Remove some unnecessary include statements

* Rename two variables

* Factor out common code

* Factor out do_verify

* Add and use type aliases for memory operation integral constants

* In gemm_basic.cpp, use kPadM, kPadN, kPadK, and kBlockPerCu from GemmConfig

---------

Co-authored-by: Adam Osewski <19374865+aosewski@users.noreply.github.com>

example/ck_tile/03_gemm/README.md

@@ -18,7 +18,6 @@ This will result in an executable `build/bin/tile_example_gemm_basic` & `build/b
 ## example
 ```
 args:
-          -b    batch size (default:1)
           -m    m dimension (default:1024)
           -n    n dimension (default:2048)
           -k    k dimension (default:64)
@@ -29,9 +28,11 @@ args:
    -stride_b    Tensor B stride (default:0)
    -stride_c    Tensor C stride (default:0)
           -v    0. No validation, 1. Validation on CPU, 2. Validation on GPU (default:2)
-          -e    Absolute error tolerance (default:1e-5)
        -prec    data type. fp16/bf16/fp8/bf8/int8 (default:fp16)
      -warmup    number of iterations before benchmark the kernel (default:10)
      -repeat    number of iterations to benchmark the kernel (default:100)
       -timer    gpu:gpu timer, cpu:cpu timer (default:gpu)
+    -split_k    splitK value (default:1)
+       -init    0:random, 1:linear, 2:constant (default:1)
+ -persistent    0:non-persistent, 1:persistent (default:0)
 ```