Select enable_dracut_fips_module in RHEL 9 ISM_O profile

As RHEL 9 ISM_O profile enables FIPS mode (selects rules
`enable_fips_mode` and `configure_crypto_policy` with
`var_system_crypto_policy=fips`) it also needs to select
the rule `enable_dracut_fips_module`.

This issue was not discovered before because on normal systems
the `fips-mode-setup` (called in `enable_fips_mode` rule remediation)
ensures the installation of the FIPS dracut module. But in RHEL Image
Mode the `fips-mode-setup` is not used and so the FIPS dracut module
needs to be enabled by remediation of the `enable_dracut_fips_module`
rule.

products/rhel9/profiles/ism_o.profile

@@ -127,6 +127,7 @@ selections:
   ## 0479 / 0480 / 0481 / 0489 / 0497 / 0994 / 0998 / 1001 /  1139 / 
   ## 1372 / 1373 / 1374 / 1375
   - enable_fips_mode
+  - enable_dracut_fips_module
   - var_system_crypto_policy=fips
   - configure_crypto_policy