phy: ti: fix Kconfig warning and operator precedence

Fix Kconfig depends operator precedence to prevent a Kconfig warning:

WARNING: unmet direct dependencies detected for MUX_MMIO
  Depends on [n]: MULTIPLEXER [=m] && OF [=n]
  Selected by [m]:
  - PHY_AM654_SERDES [=m] && (OF [=n] && ARCH_K3 || COMPILE_TEST [=y]) && COMMON_CLK [=y]

Fixes: 71e2f5c ("phy: ti: Add a new SERDES driver for TI's AM654x SoC")
Fixes: 091876c ("phy: ti: j721e-wiz: Add support for WIZ module present in TI J721E SoC")
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: Kishon Vijay Abraham I <[email protected]>
Cc: [email protected]
Cc: Arnd Bergmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

drivers/phy/ti/Kconfig

@@ -23,7 +23,7 @@ config PHY_DM816X_USB
 
 config PHY_AM654_SERDES
 	tristate "TI AM654 SERDES support"
-	depends on OF && ARCH_K3 || COMPILE_TEST
+	depends on OF && (ARCH_K3 || COMPILE_TEST)
 	depends on COMMON_CLK
 	select GENERIC_PHY
 	select MULTIPLEXER
@@ -35,7 +35,7 @@ config PHY_AM654_SERDES
 
 config PHY_J721E_WIZ
 	tristate "TI J721E WIZ (SERDES Wrapper) support"
-	depends on OF && ARCH_K3 || COMPILE_TEST
+	depends on OF && (ARCH_K3 || COMPILE_TEST)
 	depends on HAS_IOMEM && OF_ADDRESS
 	depends on COMMON_CLK
 	select GENERIC_PHY