drm/i915/psr: Fix compiler warnings for hsw_psr_disable()

drm/i915/psr: Fix compiler warnings for hsw_psr_disable()

drivers/gpu/drm/i915/intel_psr.c:634 hsw_psr_disable() warn: if statement not indented
drivers/gpu/drm/i915/intel_psr.c:644 hsw_psr_disable() warn: if statement not indented

Fixes: 3fcb0ca1d8db ("drm/i915/psr: fix blank screen issue for psr2")
Signed-off-by: Chris Wilson <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Jim Bride <[email protected]>
Cc: Vathsala Nagaraju <[email protected]>
Cc: Patil Deepti <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Rodrigo Vivi <[email protected]>