x86: HPET: fix sparse warning
x86: HPET: fix sparse warning

Impact: make global variable static

Fix this sparse warning:

 arch/x86/kernel/hpet.c:36:18: warning: symbol 'hpet_num_timers' was
 not declared. Should it be static?

Signed-off-by: Hannes Eder <331be22c6b63ca3e0a03d408c2d906b1b02cd5f2@hanneseder.net>
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@elte.hu>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas