apm821xx: move CONFIG_REGULATOR to target config

This moves CONFIG_REGULATOR to the target config instead of the
subtarget config.

For kernel 5.10, CONFIG_AT803X_PHY depends on CONFIG_REGULATOR.
As we do not have a size constraint, move this symbol to the
target configuration for kernel 5.4 as well as 5.10.

Reported-by: Russell Senior <[email protected]>
Signed-off-by: David Bauer <[email protected]>

target/linux/apm821xx/config-5.10

@@ -250,6 +250,7 @@ CONFIG_PTE_64BIT=y
 # CONFIG_RAINIER is not set
 CONFIG_RAS=y
 CONFIG_RATIONAL=y
+CONFIG_REGULATOR=y
 CONFIG_RSEQ=y
 # CONFIG_SAM440EP is not set
 # CONFIG_SCOM_DEBUGFS is not set

target/linux/apm821xx/config-5.4

@@ -304,6 +304,7 @@ CONFIG_PPC_WERROR=y
 CONFIG_PTE_64BIT=y
 # CONFIG_RAINIER is not set
 CONFIG_RAS=y
+CONFIG_REGULATOR=y
 CONFIG_RSEQ=y
 # CONFIG_SAM440EP is not set
 # CONFIG_SCOM_DEBUGFS is not set

target/linux/apm821xx/sata/config-default

@@ -40,5 +40,4 @@ CONFIG_PPC_EARLY_DEBUG_44x=y
 # CONFIG_PPC_EARLY_DEBUG_MEMCONS is not set
 CONFIG_PPC_EARLY_DEBUG_44x_PHYSHIGH=0x4
 CONFIG_PPC_EARLY_DEBUG_44x_PHYSLOW=0xef600300
-CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y