feat(qti): reorganize hoya-based SoCs under a common family directory

Group the hoya-based SoC platforms (sc7180, kodiak, lemans, qcs615)
under a new plat/qti/hoya/ directory to better classify and

feat(qti): reorganize hoya-based SoCs under a common family directory

Group the hoya-based SoC platforms (sc7180, kodiak, lemans, qcs615)
under a new plat/qti/hoya/ directory to better classify and organize
the platform code by SoC family.

The following platforms are moved under plat/qti/hoya/:
- sc7180: Qualcomm SC7180 SoC
- kodiak: Qualcomm SC7280-based SoC, supporting rb3gen2 and sc7280_chrome
board configurations
- lemans: Qualcomm Lemans SoC, supporting lemans_evk board configuration
- qcs615: Qualcomm QCS615 SoC

The shared qtiseclib (security library interface) for these SoCs is also
relocated to plat/qti/hoya/qtiseclib/, as it is specific to the
hoya-based SoC family.

Change-Id: I9592d86e4a5ad02350cbcb3f178983bfe31e242d
Signed-off-by: dongnanw <dongnanw@qti.qualcomm.com>

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