bcm27xx: bcm2712: switch default ASPM policy to Powersave

Fixes instability issues with NVMe drives on RPi 5

Signed-off-by: Marty Jones <[email protected]>

target/linux/bcm27xx/bcm2712/config-6.1

@@ -440,8 +440,8 @@ CONFIG_PCIEAER_INJECT=y
 CONFIG_PCIEASPM=y
 # CONFIG_PCIEASPM_DEFAULT is not set
 # CONFIG_PCIEASPM_PERFORMANCE is not set
-# CONFIG_PCIEASPM_POWERSAVE is not set
-CONFIG_PCIEASPM_POWER_SUPERSAVE=y
+CONFIG_PCIEASPM_POWERSAVE=y
+# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
 CONFIG_PCIEPORTBUS=y
 CONFIG_PCIE_BRCMSTB=y
 CONFIG_PCIE_DPC=y