drm/amd/display: Refactor HUBP into component folder.

[why]
cleaning up the code refactor requires hubp to be in its own component.

[how]
move all files under newly created hubp folder and fixing the makefiles.
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Pinninti <bpinnint@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn401/Makefile

@@ -4,7 +4,6 @@
 
 DCN401 += dcn401_dio_link_encoder.o
 DCN401 += dcn401_dio_stream_encoder.o
-DCN401 += dcn401_hubp.o
 DCN401 += dcn401_mpc.o
 
 AMD_DAL_DCN401 = $(addprefix $(AMDDALPATH)/dc/dcn401/,$(DCN401))

drivers/gpu/drm/amd/display/dc/hubp/Makefile

@@ -88,5 +88,10 @@ AMD_DISPLAY_FILES += $(AMD_DAL_HUBP_DCN35)
 
 ###############################################################################
 
-###############################################################################
-endif
+HUBP_DCN401 = dcn401_hubp.o
+
\ No newline at end of file
+AMD_DAL_HUBP_DCN401 = $(addprefix $(AMDDALPATH)/dc/hubp/dcn401/,$(HUBP_DCN401))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_HUBP_DCN401)
+
+endif