Fix typos

Found via `codespell -S *.xml,*.kt,./native/src/external -L crate,bu`

native/src/boot/bootimg.hpp

@@ -46,7 +46,7 @@ struct zimage_hdr {
     uint32_t magic;      /* zImage magic */
     uint32_t start;      /* absolute load/run zImage address */
     uint32_t end;        /* zImage end address */
-    uint32_t endian;     /* endianess flag */
+    uint32_t endian;     /* endianness flag */
     // There could be more fields, but we don't care
 } __attribute__((packed));
 

native/src/su/pts.cpp

@@ -265,7 +265,7 @@ int watch_sigwinch_async(int master, int slave) {
  * pump_stdin_async
  *
  * Forward data from STDIN to the given FD
- * in a seperate thread
+ * in a separate thread
  */
 void pump_stdin_async(int outfd) {
     // Put stdin into raw mode

native/src/su/pts.hpp

@@ -85,7 +85,7 @@ int watch_sigwinch_async(int master, int slave);
  * pump_stdin_async
  *
  * Forward data from STDIN to the given FD
- * in a seperate thread
+ * in a separate thread
  */
 void pump_stdin_async(int outfd);