soc/intel/alderlake: Add new CPU ID

Add new CPU ID 0x906A3 (L0 stepping).

Signed-off-by: Lean Sheng Tan <sheng.tan@9elements.com>
Change-Id: I280da46e5fdd3792df50556e2804b3bcb346eee3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63302
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/include/cpu/intel/cpu_ids.h

@@ -54,6 +54,7 @@
 #define CPUID_ALDERLAKE_J0		0x906a0
 #define CPUID_ALDERLAKE_Q0		0x906a1
 #define CPUID_ALDERLAKE_K0		0x906a2
+#define CPUID_ALDERLAKE_L0		0x906a3
 #define CPUID_ALDERLAKE_R0		0x906a4
 #define CPUID_ALDERLAKE_N_A0		0xb06e0
 #define CPUID_METEORLAKE_A0_1		0xa06a0