dpll: zl3073x: ZL3073X_I2C and ZL3073X_SPI should depend on NET

dpll: zl3073x: ZL3073X_I2C and ZL3073X_SPI should depend on NET

When making ZL3073X invisible, it was overlooked that ZL3073X depends on
NET, while ZL3073X_I2C and ZL3073X_SPI do not, causing:

    WARNING: unmet direct dependencies detected for ZL3073X when selected by ZL3073X_I2C
    WARNING: unmet direct dependencies detected for ZL3073X when selected by ZL3073X_SPI
    WARNING: unmet direct dependencies detected for ZL3073X
	Depends on [n]: NET [=n]
	Selected by [y]:
	- ZL3073X_I2C [=y] && I2C [=y]
	Selected by [y]:
	- ZL3073X_SPI [=y] && SPI [=y]

Fix this by adding the missing dependencies to ZL3073X_I2C and
ZL3073X_SPI.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202508022110.nTqZ5Ylu-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202508022351.NHIxPF8j-lkp@intel.com/
Fixes: a4f0866e3dbbf3fe ("dpll: Make ZL3073X invisible")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Link: https://patch.msgid.link/20250802155302.3673457-1-geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>