ANDROID: abi_gki_aarch64_qcom: Add gh_rm_register_platform_ops

From commit 80dfafb2b9b6 ("ANDROID: gunyah: Sync with latest "firmware:
qcom_scm: Register Gunyah platform ops""), the QCOM platform extensions
now use gh_rm_(un)register_platform_ops instead of the devm_ equivalent
because the platform extensions are no longer directly backed by a
device.

 2 function symbol(s) added
  'int gh_rm_register_platform_ops(struct gh_rm_platform_ops*)'
  'void gh_rm_unregister_platform_ops(struct gh_rm_platform_ops*)'

Bug: 279506910
Change-Id: I7ad36387a9d254691ecf9b769e058d972bd41c42
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>