arm64: pgtable-hwdef.h: delete duplicated words

Drop the repeated words "at" and "the".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20200726003207.20253-2-rdunlap@infradead.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/include/asm/pgtable-hwdef.h

@@ -29,7 +29,7 @@
  * Size mapped by an entry at level n ( 0 <= n <= 3)
  * We map (PAGE_SHIFT - 3) at all translation levels and PAGE_SHIFT bits
  * in the final page. The maximum number of translation levels supported by
- * the architecture is 4. Hence, starting at at level n, we have further
+ * the architecture is 4. Hence, starting at level n, we have further
  * ((4 - n) - 1) levels of translation excluding the offset within the page.
  * So, the total number of bits mapped by an entry at level n is :
  *
@@ -98,7 +98,7 @@
 #define CONT_PMDS		(1 << CONT_PMD_SHIFT)
 #define CONT_PMD_SIZE		(CONT_PMDS * PMD_SIZE)
 #define CONT_PMD_MASK		(~(CONT_PMD_SIZE - 1))
-/* the the numerical offset of the PTE within a range of CONT_PTES */
+/* the numerical offset of the PTE within a range of CONT_PTES */
 #define CONT_RANGE_OFFSET(addr) (((addr)>>PAGE_SHIFT)&(CONT_PTES-1))
 
 /*