archs38: Add CONFIG_HZ=100

This kernel config option was missing and resulted in a question when
building.

Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/archs38/config-5.4

@@ -140,6 +140,7 @@ CONFIG_HAVE_NET_DSA=y
 CONFIG_HAVE_OPROFILE=y
 CONFIG_HAVE_PCI=y
 CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HZ=100
 CONFIG_HZ_PERIODIC=y
 CONFIG_I2C=y
 CONFIG_I2C_BOARDINFO=y