KVM: SVM: Introduce svm_recalc_lbr_msr_intercepts()

KVM: SVM: Introduce svm_recalc_lbr_msr_intercepts()

Introduce a helper updating the intercepts for LBR MSRs, similar to the
one introduced upstream by commit 160f143cc131 ("KVM: SVM: Manually
recalc all MSR intercepts on userspace MSR filter change"). The main
difference is that this version uses set_msr_interception(), which has
inverted polarity compared to svm_set_intercept_for_msr().

This is intended to simplify incoming backports. No functional changes
intended.

Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>