accel/rocket: Fix indentation of Kconfig entry

The general indentation for the Kconfig lines is one tab, so adapt the
lines accordingly.

The description is correctly indented (1 tab + 2 spaces) so doesn't need
changes.

Fixes: ed98261b4168 ("accel/rocket: Add a new driver for Rockchip's NPU")
Signed-off-by: Heiko Stuebner <[e-mail]>
Signed-off-by: Tomeu Vizoso <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/accel/rocket/Kconfig

···
 # SPDX-License-Identifier: GPL-2.0-only
 
 config DRM_ACCEL_ROCKET
-       tristate "Rocket (support for Rockchip NPUs)"
-       depends on DRM
-       depends on (ARCH_ROCKCHIP && ARM64) || COMPILE_TEST
-       depends on ROCKCHIP_IOMMU || COMPILE_TEST
-       depends on MMU
-       select DRM_SCHED
-       select DRM_GEM_SHMEM_HELPER
-       help
+	tristate "Rocket (support for Rockchip NPUs)"
+	depends on DRM
+	depends on (ARCH_ROCKCHIP && ARM64) || COMPILE_TEST
+	depends on ROCKCHIP_IOMMU || COMPILE_TEST
+	depends on MMU
+	select DRM_SCHED
+	select DRM_GEM_SHMEM_HELPER
+	help
 	  Choose this option if you have a Rockchip SoC that contains a
 	  compatible Neural Processing Unit (NPU), such as the RK3588. Called by
 	  Rockchip either RKNN or RKNPU, it accelerates inference of neural