x86/linkage: Fix typo of BUILD_VDSO in asm/linkage.h

The BUILD_VDSO macro was incorrectly spelled as BULID_VDSO in
asm/linkage.h. This causes the !defined(BULID_VDSO) directive to always
evaluate to true.

Correct the spelling to BUILD_VDSO.

Fixes: bea75b33 ("x86/Kconfig: Introduce function padding")
Signed-off-by: Jinghao Jia <jinghao@linux.ibm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/20230808182353.76218-1-jinghao@linux.ibm.com

arch/x86/include/asm/linkage.h

@@ -21,7 +21,7 @@
 #define FUNCTION_PADDING
 #endif
 
-#if (CONFIG_FUNCTION_ALIGNMENT > 8) && !defined(__DISABLE_EXPORTS) && !defined(BULID_VDSO)
+#if (CONFIG_FUNCTION_ALIGNMENT > 8) && !defined(__DISABLE_EXPORTS) && !defined(BUILD_VDSO)
 # define __FUNC_ALIGN		__ALIGN; FUNCTION_PADDING
 #else
 # define __FUNC_ALIGN		__ALIGN