x86/msr: Add rdmsrl_on_cpu() compatibility wrapper

Add a simple rdmsrl_on_cpu() compatibility wrapper for
rdmsrq_on_cpu(), to make life in -next easier, where
the PM tree recently grew more uses of the old API.

Reported-by: Stephen Rothwell <[e-mail]>
Signed-off-by: Ingo Molnar <[e-mail]>
Acked-by: Mario Limonciello <[e-mail]>
Cc: "H. Peter Anvin" <[e-mail]>
Cc: Juergen Gross <[e-mail]>
Cc: Dave Hansen <[e-mail]>
Cc: Xin Li <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/x86/include/asm/msr.h

···
 /* Compatibility wrappers: */
 #define rdmsrl(msr, val) rdmsrq(msr, val)
 #define wrmsrl(msr, val) wrmsrq(msr, val)
+#define rdmsrl_on_cpu(cpu, msr, q) rdmsrq_on_cpu(cpu, msr, q)
 
 #endif /* __ASSEMBLER__ */
 #endif /* _ASM_X86_MSR_H */