drm/amdgpu: Remove unnecessary conversion to bool

Fix the following coccicheck warnings:

./drivers/gpu/drm/amd/amdgpu/athub_v2_1.c:79:40-45: WARNING: conversion
to bool not needed here.

./drivers/gpu/drm/amd/amdgpu/athub_v2_1.c:81:40-45: WARNING: conversion
to bool not needed here.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/athub_v2_1.c

@@ -74,10 +74,8 @@ int athub_v2_1_set_clockgating(struct amdgpu_device *adev,
 	case CHIP_SIENNA_CICHLID:
 	case CHIP_NAVY_FLOUNDER:
 	case CHIP_DIMGREY_CAVEFISH:
-		athub_v2_1_update_medium_grain_clock_gating(adev,
-				state == AMD_CG_STATE_GATE ? true : false);
-		athub_v2_1_update_medium_grain_light_sleep(adev,
-				state == AMD_CG_STATE_GATE ? true : false);
+		athub_v2_1_update_medium_grain_clock_gating(adev, state == AMD_CG_STATE_GATE);
+		athub_v2_1_update_medium_grain_light_sleep(adev, state == AMD_CG_STATE_GATE);
 		break;
 	default:
 		break;