riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs

Now that the minimum supported version of LLVM for building the kernel
has been bumped to 15.0.0, several ld.lld version checks become
tautological, as they are always true. Replace them with a simple
CONFIG_LD_IS_LLD check.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20250821-bump-min-llvm-ver-15-v2-9-635f3294e5f0@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Author: nathanchance

arch/riscv/Kconfig

@@ -620,7 +620,7 @@ config TOOLCHAIN_HAS_V
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64imv)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32imv)
-	depends on LLD_VERSION >= 140000 || LD_VERSION >= 23800
+	depends on LD_IS_LLD || LD_VERSION >= 23800
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_V
@@ -721,7 +721,7 @@ config TOOLCHAIN_HAS_ZBB
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbb)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbb)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 # This symbol indicates that the toolchain supports all v1.0 vector crypto
@@ -736,7 +736,7 @@ config TOOLCHAIN_HAS_ZBA
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zba)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zba)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_ZBA
@@ -771,7 +771,7 @@ config TOOLCHAIN_HAS_ZBC
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbc)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbc)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_ZBC
@@ -794,7 +794,7 @@ config TOOLCHAIN_HAS_ZBKB
 	default y
 	depends on !64BIT || $(cc-option,-mabi=lp64 -march=rv64ima_zbkb)
 	depends on !32BIT || $(cc-option,-mabi=ilp32 -march=rv32ima_zbkb)
-	depends on LLD_VERSION >= 150000 || LD_VERSION >= 23900
+	depends on LD_IS_LLD || LD_VERSION >= 23900
 	depends on AS_HAS_OPTION_ARCH
 
 config RISCV_ISA_ZBKB