arm64/sysreg: Convert GMID to automatic generation

Automatically generate the register definitions for GMID as per DDI0487H.a,
no functional change.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220704170302.2609529-20-broonie@kernel.orgSigned-off-by: Will Deacon <will@kernel.org>

arch/arm64/include/asm/sysreg.h

@@ -454,7 +454,6 @@
 #define SYS_CNTKCTL_EL1			sys_reg(3, 0, 14, 1, 0)
 
 #define SYS_CCSIDR_EL1			sys_reg(3, 1, 0, 0, 0)
-#define SYS_GMID_EL1			sys_reg(3, 1, 0, 0, 4)
 #define SYS_AIDR_EL1			sys_reg(3, 1, 0, 0, 7)
 
 #define SMIDR_EL1_IMPLEMENTER_SHIFT	24

arch/arm64/tools/sysreg

@@ -257,6 +257,11 @@ Field	5:3	Ctype2
 Field	2:0	Ctype1
 EndSysreg
 
+Sysreg	GMID_EL1	3	1	0	0	4
+Res0	63:4
+Field	3:0	BS
+EndSysreg
+
 Sysreg	SMIDR_EL1	3	1	0	0	6
 Res0	63:32
 Field	31:24	IMPLEMENTER