[UCX] add rocm support

[vchuravy]

No description provided.

[vchuravy]

@jpsamaroo

[01:01:03] configure: UCX build configuration:
[01:01:03] configure:       Build prefix:   /workspace/destdir
[01:01:03] configure: Preprocessor flags:   -DCPU_FLAGS="" -I${abs_top_srcdir}/src -I${abs_top_builddir} -I${abs_top_builddir}/src
[01:01:03] configure:         C compiler:   cc -O3 -g -Wall -Werror -fno-omit-frame-pointer -funwind-tables -Wno-missing-field-initializers -Wno-unused-parameter -Wno-unused-label -Wno-long-long -Wno-endif-labels -Wno-sign-compare -Wno-multichar -Wno-deprecated-declarations -Winvalid-pch -Wno-pointer-sign -Werror-implicit-function-declaration -Wno-format-zero-length -Wnested-externs -Wshadow
[01:01:03] configure:       C++ compiler:   c++ -O3 -g -Wall -Werror -fno-omit-frame-pointer -funwind-tables -Wno-missing-field-initializers -Wno-unused-parameter -Wno-unused-label -Wno-long-long -Wno-endif-labels -Wno-sign-compare -Wno-multichar -Wno-deprecated-declarations -Winvalid-pch
[01:01:03] configure:       Multi-thread:   enabled
[01:01:03] configure:          MPI tests:   disabled
[01:01:03] configure:      Devel headers:   no
[01:01:03] configure:           Bindings:   < >
[01:01:03] configure:        UCT modules:   < cuda ib rdmacm rocm >
[01:01:03] configure:       CUDA modules:   < >
[01:01:03] configure:       ROCM modules:   < >
[01:01:03] configure:         IB modules:   < >
[01:01:03] configure:        UCM modules:   < cuda rocm >
[01:01:03] configure:       Perf modules:   < cuda rocm >
[01:01:03] configure: =========================================================

Thanks for mentioning that we already had rocr build.