staging: android ion/hisi: fix dependencies

The newly added Hi6220 Ion code fails to build when the ION_OF helpers
are not present:

drivers/staging/android/ion/hisilicon/hi6220_ion.o: In function `hi6220_ion_remove':
hi6220_ion.c:(.text.hi6220_ion_remove+0x4c): undefined reference to `ion_destroy_platform_data'
drivers/staging/android/ion/hisilicon/hi6220_ion.o: In function `hi6220_ion_probe':
hi6220_ion.c:(.text.hi6220_ion_probe+0x5c): undefined reference to `ion_parse_dt'
hi6220_ion.c:(.text.hi6220_ion_probe+0xf8): undefined reference to `ion_destroy_platform_data'

This selects the symbol when needed.

Fixes: 2b40182a19bc ("staging: android: ion: Add ion driver for Hi6220 SoC platform")
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Laura Abbott <[email protected]>
Reviewed-by: Sumit Semwal <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions