MIPS: KVM: Make kvm_mips_{init,exit}() static

The module init and exit functions have no need to be global, so make
them static.

Signed-off-by: James Hogan <[e-mail]>
Cc: Paolo Bonzini <[e-mail]>
Cc: Gleb Natapov <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Patchwork: https://patchwork.linux-mips.org/patch/11889/
Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/kvm/mips.c

···
 	.notifier_call = kvm_mips_csr_die_notify,
 };
 
-int __init kvm_mips_init(void)
+static int __init kvm_mips_init(void)
 {
 	int ret;
 
···
 	return 0;
 }
 
-void __exit kvm_mips_exit(void)
+static void __exit kvm_mips_exit(void)
 {
 	kvm_exit();