arm64/sysreg: Standardise naming of ID_AA64PFR1_EL1 BTI enumeration

In preparation for automatic generation of constants update the define for
BTI being implemented to the convention we are using, no functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Kristina Martsenko <kristina.martsenko@arm.com>
Link: https://lore.kernel.org/r/20220905225425.1871461-19-broonie@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/include/asm/sysreg.h

@@ -723,7 +723,7 @@
 #define ID_AA64PFR1_EL1_SSBS_NI		0
 #define ID_AA64PFR1_EL1_SSBS_IMP	1
 #define ID_AA64PFR1_EL1_SSBS_SSBS2	2
-#define ID_AA64PFR1_EL1_BT_BTI		0x1
+#define ID_AA64PFR1_EL1_BT_IMP		0x1
 #define ID_AA64PFR1_EL1_SME		1
 
 #define ID_AA64PFR1_EL1_MTE_NI		0x0

arch/arm64/kernel/cpufeature.c

@@ -2530,7 +2530,7 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
 		.sys_reg = SYS_ID_AA64PFR1_EL1,
 		.field_pos = ID_AA64PFR1_EL1_BT_SHIFT,
 		.field_width = 4,
-		.min_field_value = ID_AA64PFR1_EL1_BT_BTI,
+		.min_field_value = ID_AA64PFR1_EL1_BT_IMP,
 		.sign = FTR_UNSIGNED,
 	},
 #endif
@@ -2741,7 +2741,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 #endif
 	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_EL1_SSBS_SHIFT, 4, FTR_UNSIGNED, ID_AA64PFR1_EL1_SSBS_SSBS2, CAP_HWCAP, KERNEL_HWCAP_SSBS),
 #ifdef CONFIG_ARM64_BTI
-	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_EL1_BT_SHIFT, 4, FTR_UNSIGNED, ID_AA64PFR1_EL1_BT_BTI, CAP_HWCAP, KERNEL_HWCAP_BTI),
+	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_EL1_BT_SHIFT, 4, FTR_UNSIGNED, ID_AA64PFR1_EL1_BT_IMP, CAP_HWCAP, KERNEL_HWCAP_BTI),
 #endif
 #ifdef CONFIG_ARM64_PTR_AUTH
 	HWCAP_MULTI_CAP(ptr_auth_hwcap_addr_matches, CAP_HWCAP, KERNEL_HWCAP_PACA),