arm64: perf: Treat EXCLUDE_EL* bit definitions as unsigned

Although the upper 32 bits of the PMEVTYPER<n>_EL0 registers are RES0,
we should treat the EXCLUDE_EL* bit definitions as unsigned so that we
avoid accidentally sign-extending the privilege filtering bit (bit 31)
into the upper half of the register.
Signed-off-by: NWill Deacon <will.deacon@arm.com>

arch/arm64/include/asm/perf_event.h

@@ -206,9 +206,9 @@
 /*
  * Event filters for PMUv3
  */
-#define	ARMV8_PMU_EXCLUDE_EL1	(1 << 31)
-#define	ARMV8_PMU_EXCLUDE_EL0	(1 << 30)
-#define	ARMV8_PMU_INCLUDE_EL2	(1 << 27)
+#define	ARMV8_PMU_EXCLUDE_EL1	(1U << 31)
+#define	ARMV8_PMU_EXCLUDE_EL0	(1U << 30)
+#define	ARMV8_PMU_INCLUDE_EL2	(1U << 27)
 
 /*
  * PMUSERENR: user enable reg