x86/apic: Provide apic_printk() helpers

apic_printk() requires the APIC verbosity level and printk level which is
tedious and horrible to read. Provide helpers to simplify all of that.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Tested-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/all/20240802155440.527510045@linutronix.de