x86: generic: config-6.6: add/remove default syms

Add new default and remove deprecated symbols introduced by 6.6.28[1]

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/arch/x86/Kconfig?id=v6.6.28&id2=v6.6.27

Signed-off-by: John Audia <[email protected]>

target/linux/x86/config-6.6

@@ -240,6 +240,7 @@ CONFIG_MICROCODE=y
 CONFIG_MICROCODE_LATE_LOADING=y
 CONFIG_MIGRATION=y
 CONFIG_MITIGATION_RFDS=y
+CONFIG_MITIGATION_SPECTRE_BHI=y
 # CONFIG_MK6 is not set
 # CONFIG_MK7 is not set
 # CONFIG_MK8 is not set
@@ -360,9 +361,6 @@ CONFIG_SG_POOL=y
 CONFIG_SOFTIRQ_ON_OWN_STACK=y
 CONFIG_SPARSEMEM_STATIC=y
 CONFIG_SPARSE_IRQ=y
-# CONFIG_SPECTRE_BHI_AUTO is not set
-# CONFIG_SPECTRE_BHI_OFF is not set
-CONFIG_SPECTRE_BHI_ON=y
 CONFIG_SPECULATION_MITIGATIONS=y
 CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU=y
 # CONFIG_STATIC_CALL_SELFTEST is not set