media: platform: qcom/iris: rename platform_sm8550 to platform_gen2

In order to prepare for supporting the SM8650 SoC, move the
iris_platform_sm8550.c file into iris_platform_gen2.c that will
contain all the common HFI GEN2x structures.

Reviewed-by: Bryan O'Donoghue <[e-mail]>
Tested-by: Bryan O'Donoghue <[e-mail]> # x1e Dell
Signed-off-by: Neil Armstrong <[e-mail]>
Reviewed-by: Vikash Garodia <[e-mail]>
Signed-off-by: Bryan O'Donoghue <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/platform/qcom/iris/Makefile

···
              iris_hfi_gen2_packet.o \
              iris_hfi_gen2_response.o \
              iris_hfi_queue.o \
-             iris_platform_sm8550.o \
+             iris_platform_gen2.o \
              iris_power.o \
              iris_probe.o \
              iris_resources.o \