style: fix spelling in code comments and strings

libs/libc/machine/x86_64/arch_elf64.c

@@ -191,7 +191,7 @@ int up_relocateadd(const Elf64_Rela *rel, const Elf64_Sym *sym,
         value = (sym->st_value + rel->r_addend - addr +
                  CONFIG_ARCH_TEXT_VBASE);
 
-        /* Convert MOV to LEA - other relocations not suported */
+        /* Convert MOV to LEA - other relocations not supported */
 
         if (*(uint8_t *)(addr - 2) != OPCODE_MOV)
           {

libs/libc/machine/x86_64/gnu/arch_memcmp.S

@@ -1581,7 +1581,7 @@ L(32bytes):
 	ret
 
 /*
- * Aligned 8 bytes to avoid 2 branch "taken" in one 16 alinged code block.
+ * Aligned 8 bytes to avoid 2 branch "taken" in one 16 aligned code block.
  */
 	ALIGN (3)
 L(less16bytes):

libs/libc/machine/x86_64/gnu/arch_strcmp.S

@@ -120,7 +120,7 @@ ENTRY (STRCMP)
 	jnz	L(less16bytes)	/* If not, find different value or null char */
 #ifdef USE_AS_STRNCMP
 	sub	$16, %r11
-	jbe	L(strcmp_exitz)	/* finish comparision */
+	jbe	L(strcmp_exitz)	/* finish comparison */
 #endif
 	add	$16, %rsi		/* prepare to search next 16 bytes */
 	add	$16, %rdi		/* prepare to search next 16 bytes */
@@ -317,7 +317,7 @@ L(nibble_ashr_1):
 #endif
 
 	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10		/* substract 4K from %r10 */
+	sub	$0x1000, %r10		/* subtract 4K from %r10 */
 	jmp	L(gobble_ashr_1)
 
 	/*