[mlir][tosa] Fix conv op build functions (#126321)
This patch fixes several issues:
- buildConvOpWithQuantInfo:
call buildConvOpResultTypeInfo to get final output type
- buildTransConvOpWithQuantInfo:
add input_zp and weight_zp operands
remove input_zp/weight_zp attributes
- createZeroPointTensor:
add getElementTypeOrSelf to get element type just in case
remove bad auto-merge lines
Change-Id: Idbf88f500ce57a865da4b7be7b7b8bf2ba194b24
Signed-off-by: Tai Ly <tai.ly@arm.com>
