libcamera: internal: Move Matrix class into libcamera namespace

The Matrix class no longer lives inside lipipa. Move it into the
libcamera namespace to account for that.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/libcamera/matrix.cpp

@@ -5,7 +5,7 @@
  * Matrix and related operations
  */
 
-#include "matrix.h"
+#include "libcamera/internal/matrix.h"
 
 #include <libcamera/base/log.h>
 
@@ -18,8 +18,6 @@ namespace libcamera {
 
 LOG_DEFINE_CATEGORY(Matrix)
 
-namespace ipa {
-
 /**
  * \class Matrix
  * \brief Matrix class
@@ -144,6 +142,4 @@ bool matrixValidateYaml(const YamlObject &obj, unsigned int size)
 }
 #endif /* __DOXYGEN__ */
 
-} /* namespace ipa */
-
 } /* namespace libcamera */